Duraspark Distributor Recurve

I guess no one makes stuff for the Duraspark II distributors. Bang for the buck, the Duraspark II distributor is hard to beat as a triggering devise for an electronic ignition system. Check the timing, vac advance detached, vacuum line to distributor closed. What marketing strategies does Reincarnation-automotive use? Get traffic statistics, SEO keyword opportunities, audience insights, and competitive analytics for Reincarnation-automotive. Notice how all distributors use the same arrangement; the switch is mounted on the breaker plate, while the trigger is on the shaft. I decided to do a bit of tuning to the 331 today. Points, duraspark electronic or use a Pertronix unit. Remove rotor and disconnect vacuum line and unplug wires to magnetic pick up. Changing when these two make contact results in advancing or retarding the spark mechanism. But judging from the carb air cleaner and stock intake manifold combo shown, that stock Duraspark distributor looks lower than my MSD Pro Billet distributor. Performance Tuning Your Distributor April 16, 2015 Randy Bolig Drag Race 101 , Guest Columns , How-To and Tech Tips , Tech 0 If you spend any time at a speed shop or race track, you have inevitably heard someone mention “where their timing is set”. I'd heard mention of the weld and grind method before, that may be what I have to do. These distributors come complete and ready-to-run. I have a 1978 Ford F-150 4x4 with an inline 6. 26deg +++ Then a very short curve to max advance. The Mopar electronic ignition system introduced in 1972 was cutting edge in its day. My damper only goes to 30 degrees BTC so I am guessing when I say total was upper 30's. Beginning in 1972, the Autolite name was dropped and Motorcraft used instead. Performance Distributors is leading the way in performance and racing ignition system innovation. By not putting everything metal right under the rotor, they delivered much more spark energy to the correct distributor cap terminal at the correct time. 00 US retail and the recurve spring kits are cheap at about $7. Step 4 Clip the pickup lead on the inductive timing light to the number one spark plug wire, which is the first one on the front of the engine. is your stock distributor from an egr equipped vehicle? most egr (73-77 in the case of mavericks) distributors have to be recurved when egr has been removed and will ping under hard acceleration no matter what initial timing one uses. My damper only goes to 30 degrees BTC so I am guessing when I say total was upper 30's. I'm setting up a 1970 Ford 302 with a later "Duraspark" ignition system. But, when people go with carburetors and just disconnect the vacuum but leave the canister on, where is rotor phasing coming from?. This would entail installing a minor recurve kit and adjusting the total distributor advance so you could get say 32 deg total including about 8 deg initial, so about 24 degrees in the distributor itself. Im having an all iron, stock stroke Cleveland built. On the ignition side, the Cobra was running a Ford large-cap Duraspark magnetic-impulse distributor, circa 19751985. com : Ford Forums. contact spacing was 0. All old Ford Truck owners need to know Ignition Control Module From New and old. We are here to help you "Make your big block rock" Custom engine building, 460 ford performance, 460 porting instructions, BBF iron and aluminum cyl head porting, EFI 460 performance, recurved duraspark distributor,Ford high performance crate engines. no boost retard. Fully remanned and recurved duraspark distributors We disassemble, inspect, recurve to app on a sun distributor machine for your specific application. Ford Distributors & Ignition Systems. Delcos are easier to check part's numbers on since they are stamped on the housing. Recurve the distributor for a short curve with all the initial base timing the motor wants at idle. Likewise, if you're replacing the rotor, be sure to install a new cap as well. All old Ford Truck owners need to know Ignition Control Module From New and old. I have been using the small points style cap on a Duraspark distributor for many years without any problems,I am also using a cut to fit set of plug wires that are probably for a points ignition too. The Mopar electronic ignition system introduced in 1972 was cutting edge in its day. The Duraspark II distributor cap is larger in diameter to allow the high tension terminals to be spaced farther apart. I had a distributor from a 1977 ford pickup. A ballast resistor suitable for DuraSpark II installations is available from NAPA Auto Parts, NAPA part number ICR23 (1. I offer many rare distributors for sale. I bought a new Duraspark distributor for an FE, no more points, and looks like the old point style distrib, but with a pickup in it. Shop with confidence. By providing them with specific information about your application, Steve Davis and his team will dial-in a DURASPARK unit with a custom. Re: Distributor Recurve / waterproofing Glad to help WD-40 I mentioned the 351 Cleveland, because I thought Converted had hizsef a 78 or 79 there, but on closer inspection it looks like an 85. Whenever the distributor cap is changed, you should install a new rotor. 0 did this change in the mid 80s. Duraspark recurve results. edit - I believe there's a Mr. org/~dw/index. Dura spark conversion, 7 minutes total on job thus far (not including the 15 min to recurve). Most of the Cardone remanufactured Duraspark II distributors come with a 16L weight in the centrifugal advance with a 21L - usually - on the other side. Duraspark ignition is a good choice but it requires a bit of wiring to your car. The duraspark distributor is a fine piece for street duty, and so is an MSD 6A or 6AL. Eventually, oil splash will maintain lube. Autotronic Controls Corporation has taken down their Dual Curve web site. re-curving duraspark distributor - Four Eyed Forums. Make sure you have enough movement to rotate the distributor so you can both advance and retard the timing. The Duraspark dist is easy to mod the mech advance is deep in the unit, but not tough to get to. Added bonus, there is no mechanical advance, so no weight bushings to wear out. Order Distributor Repair Kit for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. No phone calls please. I am going to take the duraspark distributor to a local to recurve it before putting it back in as I had to put the points distributor back in as it pinged too much with the duraspark. I did some checking on it's advance curve and found that the mechanical advance is done at 85 5. I have been using the small points style cap on a Duraspark distributor for many years without any problems,I am also using a cut to fit set of plug wires that are probably for a points ignition too. I decided to do a bit of tuning to the 331 today. com : Ford Forums. Hi, My 358W is back together with about 425 HP. While everyone else was using the ancient points-type ignitions, Chrysler scooped ’em all with the electronic. 26deg +++ Then a very short curve to max advance. I might order one from Summit and an Accel spring kit to recurve it. Ford Duraspark: Parts & Accessories eBay Find great deals on eBay for Ford Duraspark in Distributors & Parts. This is MSD's street distributor for a Chevy application. The World's Speed Shop Since 1968. Our distributor machines have been re-geared to spin 8,800 Crank Shaft RPM for testing any and all ignition systems. It will trigger your MSD box, I've done that. There is an adapter on summit so you can plug directly into the MSD harness. Hello there guest and Welcome to The #1 Classic Mustang forum! To gain full access you must Register. I want to reduce it to the 10L size and keep reading about everyone welding the slot up. 3 first debuted in the 1974 Pinto using a progressive 2bbl Weber/Holley carburetor and a points distributor. Thanks for the link, but that didn't help. Think of it this way: The primary circuit gets power to the ignition coil and the secondary circuit gets processed power to the spark plugs. Mine is welded so small that I can get 36 total with 26 initial. Problem is twofold. The Crane box (along with everyone else's box) can use the same magnetic pickup in the distributor as the Duraspark setup. Otherwise, Raso Enterprises has complete underhood systems and fuel mixture control products & ignition timing control products available for most of the applications listed below. 1979-1985 Mustang Distributor If your 1979-1985 Mustang is running rough or cutting out at higher RPM's, it might be time for a tune up. Nos Oem - $279. Bunting Bearings manufactures a complete range of cast products including bronze, powdered metal and plastic bearings, bars, discs and plates. Hit the hot rod shops in your area for someone with a distributor machine. (07-10-2017, 10:58 PM) Canted 393 Wrote: Try this guy Faron Rhoads he recures duraspark dizzys [email protected] I am using a Duraspark distributor and port vacuum advance. How to Set your Ignition Timing. re-curving duraspark distributor - Four Eyed Forums. Le recurve devrait augmenter le RPM efficace entre 2200 et 6500 RPM avec une augmentation de couple à un pic RPM légèrement plus élevé. For the adjustable vacuum advance. The Autolite single-point distributor was a mainstay on all big-block Fords from 1958-71. The Duraspark dist is easy to mod the mech advance is deep in the unit, but not tough to get to. This prevents cross firing with the higher coil voltage. The Ford Dura-spark distributor is an inexpensive and reliable alternative to the expensive aftermarket distributors. Our distributor machines have been re-geared to spin 8,800 Crank Shaft RPM for testing any and all ignition systems. reincarnation-automotive. Distributor Hole Plug The Distributor Hole Plug is designed for the enthusiast who has changed over to a Mallory Front Drive COMP 9000® Distributor, a Mallory Magneto Front Drive or a. The system worked well, but eventually I swapped out the duraspark box for a Crane HI-6 box. None of the 385-series engines ever had a dual-point ignition except for the 1969-70 Boss 429. There are a couple of folks on Fordsix offering recurve services. They take a rebuilt Duraspark distributor, and recurve it and the vacuum advance to your particular engine. It's a big difference from just buying a replacement distributor. The Ford Duraspark we offer is a high performance unit for those who want a completely stock appearing or factory style electronic distributor. The Crane box (along with everyone else's box) can use the same magnetic pickup in the distributor as the Duraspark setup. You will be more likely to get the lower number advance slot like a 10L or 13L rather than the 18 or 21L's. The distributor is a rebuilt Duraspark II for an 85 Mustang GT. These distibutors can also be converted to Ford Duraspark ignition (The best type are the 1962-1964 units with the o-ring seal on the base) Avoid 1955-1956 Load-o-matic distributors. This can be run with a factory Duraspark II ignition box, an MSD box (MSD makes a Duraspark-to-MSD connector for a clean installation), or even a GM 4-pin HEI module. Ford FE Engine Ignition Systems Guide- Build Max Performance for the 332, 352, 361, 390, 406, 410, 427, and 428 Engines and How to Stroke Your Engine. Ford F250 Pickup 4x2: I own a 1969 Ford F 250 with a 4. Where can I get Duraspark distributor recurve kits? Local NAPA, or do I need to go to Summit? How about the hardened gear pin, where is a good place to find one of those? How does a vacuum advance diaphragm help the engine on the street and gas mileage?. Here's how to spot the right one for your Mustang. These distibutors can also be converted to Ford Duraspark ignition (The best type are the 1962-1964 units with the o-ring seal on the base) Avoid 1955-1956 Load-o-matic distributors. Ok I'm confused about using port or manifold vacuum advance. Re: Recurve distributor DURASPARK-2 I did this light spring mod on my 69 351w stoked to 393ci, 10. same as the above tion distributor for quicker spark ad-Soft Touch 6T Rev Control exc. Please e-mail me. 2000rpm is way too early for a stock geared or torque converter street car. AMC had redesigned its inline OHV engines for its 1964 cars, shifting to a 7‐main bearing design. It has to deliver a timed spark to each spark plug at precisely the right moment in sync with piston travel and crankshaft, camshaft, and. Without knowing what year engine you have, you can use the rule of thumb. 18deg advance travel is too much. There is an adapter on summit so you can plug directly into the MSD harness. Which is why I use it, because I have a duraspark distributor as well. Curved per application. The magnetic pickup coil and reluctor in the FoMoCo dizzys are the EXACT same ones used by MSD in their distributors, which is why MSD shows in their instructions how to hook up their MSD box to a Ford DuraSpark dizzy or MSD dizzy to a Ford box. One of the greatest improvements I have ever made as far as driveability and overall good performance are concerned. Here's how to spot the right one for your Mustang. 0 Fox Body can start to wear out, leaving you with a miss or rough idle. Coupled with either the sock ignition box or an aftermarket control box (such as as the Dyna Module or MSD-6A) it is a tough, readily available, reliable distributor. This distributor had an original application of set at 0 degree TDC so it could advance the 30+ degrees necessary. What year and app do I ask for (California-Duraspark) What year "Jeep Cap". The Duraspark dist is easy to mod the mech advance is deep in the unit, but not tough to get to. Shop with confidence. Find FORD Distributor Advance Kits and get Free Shipping on Orders Over $99 at Summit Racing!. The distributor cost me $27. Get the best deals on Car & Truck Ignition Systems when you shop the largest online selection at eBay. The MSD distributors come with 3 bushings with the largest one being 18* so when installed it will give you 18* of mechanical advance. Get the ignition sorted out, and then recurve the dist, then you will see some power. Added bonus, there is no mechanical advance, so no weight bushings to wear out. Whenever the distributor cap is changed, you should install a new rotor. CLICK HERE to return to Home Page. Autotronic Controls Corporation has taken down their Dual Curve web site. I want to reduce it to the 10L size and keep reading about everyone welding the slot up. General information: 170 and 200 cubic inch in-line six cylinders all had a breaker arm spring tension of 17-21 ounces. The late 302/332 oil pumps are the adjustable Gereotor type and are superior for increased volume and reduced friction. Home - GM HEI Distributor Upgrade for 258 I6 Jeeps The drive gear found on stock 79 & later Jeeps with the Duraspark ignition will not fit properly on the HEI distributor. It will trigger your MSD box, I've done that. You will be more likely to get the lower number advance slot like a 10L or 13L rather than the 18 or 21L's. IMO, you need to recurve ANY replacement ignition system for YOUR engine, the size, compression, fuel, gear ratio, needs. It's also worth considering that with dissimilar springs, that you can recurve your distributor at different rates. 3L) Diesel 1994 F250, F350, F450 Direct Injection (Turbo) 1995-97 F250, F350, F450. Well I still run the factory Duraspark dizz in my Capri. proper position. distributor accessible. There are three basic MSD units: billet, billet with a vacuum advance, and programmable E-Curve. Coupled with either the sock ignition box or an aftermarket control box (such as as the Dyna Module or MSD-6A) it is a tough, readily available, reliable distributor. Fully remanned. It is 30 degrees of crank advance, because the distributor turns at half the speed of the crank, and whatever you do with the distributor, in degrees, is doubled on the crank. willgive me to much advance. No phone calls please. Think of it this way: The primary circuit gets power to the ignition coil and the secondary circuit gets processed power to the spark plugs. The Mallory advance system seems to wear out quickly resulting in an erratic advance curve. My engine was rebuilt about 29k miles ago; last tune up less than 15K miles (3 years) ago. I finally bought an eBay duraspark distributor (first one I got was for a 302, the seller said it was for a 351 but too short) since it currently has one without a vacuum advance, I am going with a duraspark module though I think, I have to make it look stock, make it run, and most important pass emissions and run well, and not get 7 mpg. Fully remanned and recurved duraspark distributors. Duraspark distributors are not. Duraspark distributor conversion FI/non-FI for under $30 Then you will need a couple parts from a donor Ford Duraspark dist. Edited 2 time(s). com • (915) 857-5200 • FAX (915) 857-3344 MSD Pro-Billet Chevrolet V8 Distributor PN 85551and PN 8589 with Vacuum Advance, PN 8361. Free shipping on many items. This recurving operation usually takes me about an hour or less. Help re-curving 351W duraspark distributor. I believe the. Make sure you have enough movement to rotate the distributor so you can both advance and retard the timing. is your stock distributor from an egr equipped vehicle? most egr (73-77 in the case of mavericks) distributors have to be recurved when egr has been removed and will ping under hard acceleration no matter what initial timing one uses. Engine should be at normal operating temperature at idle with vacuum to distributor disconnected and plugged. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. I worked with the guys at Performance Distributors to develop one for a Y-Block and there just isn't room for a stock GM cap/coil assembly without a custom distributor body. You will need to search for DuraSpark Ignition or DuraSpark Distributor Advance Recurve Regards, Fred Fjguercio is offline Quote Quick Reply post #12 of 15 Old 05-25. How to recurve a Duraspark distributor – easy way to add performance if you have one of these distributors on your Mustang or other Ford How to determine the age of a tire – depending on who you believe, most tires made today only last 7 – 10 years. I pick excellent,used AUTOLITE housings,or BLANK housings with no name or numbers, for both the distributor and the vacuum advance. A high output ignition was introduced in 1977, named Duraspark I. I custom build each one to your specific requests. distributor accessible. How to recurve a Duraspark distributor - easy way to add performance if you have one of these distributors on your Mustang or other Ford How to determine the age of a tire - depending on who you believe, most tires made today only last 7 - 10 years. You are correct, I was not refering to the cap size in relation to ignition function, I was refering to it as a way to identify Duraspark I versus Duraspark II. com Canted 393, the distributor, I can recurve myself, but will try this guy to see if he will reveal his secret to this. A lot of people will also suggest recurving the distributor, too. org is the man to see about custom-recurve work on Slant-6 distributors. I tired the exact application Scott suggested in the recurve write up on his website, that of a 75 elite. Beginning in 1972, the Autolite name was dropped and Motorcraft used instead. Over the years, the distributor in your 5. With a target total and initial in mind I measured the weights in the new distributor and made the adjustments. As you can see, the slot labeled "15L" is engaged on the limit pin. Worked well for me. The distributor is a rebuilt Duraspark II for an 85 Mustang GT. The Pros: Hide the box and it 'looks' almost stock (like on the backside of the passenger shock tower), Ram Air cleaner still fits without modification, and you can find replacement parts (dizzy, box, cap & rotor) at local parts stores usually on the shelf. This distributor features a steel gear and fits carbureted Mustangs with a manual transmission. MSD makes the best distributors of all, first class stuff. What year and app do I ask for (California-Duraspark) What year "Jeep Cap". 00 US retail and the recurve spring kits are cheap at about $7. Hit the hot rod shops in your area for someone with a distributor machine. Hey guys, here's my help thread for the 400 in my '77 truck. This distributor is set up to provide 30 crank degrees of mechanical advance. This spring requires slightly less force to stretch it the same distance, so it will cause the timing to advance at a faster rate. I had a distributor from a 1977 ford pickup. You do this in addition to modifying the weights/springs to conform to the advance curve of the "S" distributor (degree advance/rpm). Bang for the buck, the Duraspark II distributor is hard to beat as a triggering devise for an electronic ignition system. Think of it this way: The primary circuit gets power to the ignition coil and the secondary circuit gets processed power to the spark plugs. Gasket, p/n 925D, about $5. This allows your engine to rev freely through the RPM’s much faster and more efficiently than ever before. It can be used with both the large cap and small cap early electronic distributors. Setting the timing on your engine is one of the most misunderstood adjustments, the information on these pages will help you understand and answer all of your questions about ignition timing. The GM module needs to use some form of heat sink along with thermal heat transfer compound. 2000-2800rpm is a huge allowance for total mechanical advance. I did the same thing as Helmantel, it is a great mod to a stock distributor. The Duraspark II distributor cap is larger in diameter to allow the high tension terminals to be spaced farther apart. (07-10-2017, 10:58 PM) Canted 393 Wrote: Try this guy Faron Rhoads he recures duraspark dizzys [email protected] I also have a MSD Blaster 2f waiting to be installed. Hello there guest and Welcome to The #1 Classic Mustang forum! To gain full access you must Register. 70Ω primary resistance, 7,750Ω secondary resistance and no ballast resistance (the coil operated at full battery voltage). Bristol, In ( by Elkhart). Gasket recurve springs. If not, you're one tooth off where the distributor gear meshes the camshaft gear. Performance Tuning Your Distributor April 16, 2015 Randy Bolig Drag Race 101 , Guest Columns , How-To and Tech Tips , Tech 0 If you spend any time at a speed shop or race track, you have inevitably heard someone mention "where their timing is set". While everyone else was using the ancient points-type ignitions, Chrysler scooped ’em all with the electronic. Likewise, if you're replacing the rotor, be sure to install a new cap as well. The secondary circuit consists of the secondary side of the ignition coil (negative terminal), ignition harness, and spark plugs. Points, duraspark electronic or use a Pertronix unit. Duraspark distributor conversion FI/non-FI for under $30 Then you will need a couple parts from a donor Ford Duraspark dist. Over the years, the distributor in your 5. Get the ignition sorted out, and then recurve the dist, then you will see some power. I've looked there, Jegs, Summit, a whole bunch of places, and nothing. Once you get up to 80s technology spark is spark, but you'll need to tweak the springs and vacuum advance for this since it won't match a factory application and its a lot easier to tune one of them than a factory duraspark distributor. com Canted 393, the distributor, I can recurve myself, but will try this guy to see if he will reveal his secret to this. It is 30 degrees of crank advance, because the distributor turns at half the speed of the crank, and whatever you do with the distributor, in degrees, is doubled on the crank. Worried about the module failing? Just run an MSD 6AL. this has been a very budget minded rebuild on their boat. Since the Duraspark system has been installed in millions of vehicles since 1974, cores are plentiful from salvage yards. The late 302/332 oil pumps are the adjustable Gereotor type and are superior for increased volume and reduced friction. Dura spark conversion, 7 minutes total on job thus far (not including the 15 min to recurve). 8 powered Pinto or Mustang II. Coupled with either the sock ignition box or Duraspark: Parts & Accessories eBay Find great deals on eBay for Duraspark in Distributors & Parts. 4) You try to recurve your ignition and break off the weight pins 2weeks prior to a trail ride. I see Summit has the kits with the vac advance cannister but i just bought the cannister locally and now i may need some springs. You can find them for about $52. Likewise, if you're replacing the rotor, be sure to install a new cap as well. I might order one from Summit and an Accel spring kit to recurve it. 3) You like tinkering with your HEEP. The duraspark distributor is a fine piece for street duty, and so is an MSD 6A or 6AL. Delcos are easier to check part's numbers on since they are stamped on the housing. The reluctor was the 15L/21L and was in the 15L side. my 78 Ford still has the original DuraSpark box, the chevy has had plenty of HEI modules. The Duraspark dist is easy to mod the mech advance is deep in the unit, but not tough to get to. Alot of performance builders say to recurve a stock smog distributor for a performance -built motor, replace the heavy spring with a light one. The Duraspark distributor is easily wired to an MSD or other aftermarket ignition system. My initial timing is set to 15 degrees. I have a 1978 Ford F-150 4x4 with an inline 6. Our products are used by all, from beginners to top archers. 70Ω primary resistance, 7,750Ω secondary resistance and no ballast resistance (the coil operated at full battery voltage). will probably be bringing it to the fairlane nationals this year in Dayton , OH. This spring requires slightly less force to stretch it the same distance, so it will cause the timing to advance at a faster rate. 9 liter straight 6 coupled with C-4 automatic transmission. All things Mechanical. The Autolite/Motorcraft distributor family consists of distributors with bronze bushings, with some having only one bushing and others having two. 8 powered Pinto or Mustang II. Think of it this way: The primary circuit gets power to the ignition coil and the secondary circuit gets processed power to the spark plugs. I had a distributor from a 1977 ford pickup. I recently decided to 'recurve' the distributor and found it to be a much easier task than I initially anticipated. Where can I get Duraspark distributor recurve kits? Local NAPA, or do I need to go to Summit? How about the hardened gear pin, where is a good place to find one of those? How does a vacuum advance diaphragm help the engine on the street and gas mileage?. it seems to me that most small blocks were happiest around 12 degrees initial, but i could be dead wrong on that, (relying strictly on memory). The duraspark ignition is one step above points. The Ford 460-cubic-inch, V-8 engine, produced from 1968 until 1996, was essentially a 429 engine with a longer stroke. 3L) Diesel 1994 F250, F350, F450 Direct Injection (Turbo) 1995-97 F250, F350, F450. BRAND NEW Points or Duraspark for small block, FE or 385 series curved to your application = $249 shipped in the US Recurved & Rebuilt Y block Units $250 with a core, $299 if you dont have a core. 0 + carb? I'm either going with the duraspark ford system or buying a points dizzy and changing it with a petronics. Problem is twofold. Frank/Rebop. it has been a. 911 Distributor Recurve | Porsche Club of America Skip to main content. A ballast resistor suitable for DuraSpark II installations is available from NAPA Auto Parts, NAPA part number ICR23 (1. We only work with the best Vape Mods & E-Liquids, such as Pioneer4You, iPV, iPV Eclipse, and SXmini – all featuring YiHi chipsets to bring our wholesale customers top-tier products with a special focus. Added bonus, there is no mechanical advance, so no weight bushings to wear out. Notice how all distributors use the same arrangement; the switch is mounted on the breaker plate, while the trigger is on the shaft. The World's Speed Shop Since 1968. We are here to help you "Make your big block rock" Custom engine building, 460 ford performance, 460 porting instructions, BBF iron and aluminum cyl head porting, EFI 460 performance, recurved duraspark distributor,Ford high performance crate engines. contact spacing was 0. Ford 390 FE Distributor Rebuild, Recurve Advance, & add Pertronix II TOP END ASSEMBLY S ECTION. m m jeep wrangler distributor can someone expain to me the distributorless ignition thing with 2000 and 97-99 new distributor installed but jeep stumbles when i give it a little gas distributor problems vacuum advance on distributor timing. Autotronic Controls Corporation has taken down their Dual Curve web site. The Ford 460-cubic-inch, V-8 engine, produced from 1968 until 1996, was essentially a 429 engine with a longer stroke. willgive me to much advance. General information: 170 and 200 cubic inch in-line six cylinders all had a breaker arm spring tension of 17-21 ounces. The HEI/ESC distributor uses no vac advance. The MSD can be used as a stand-alone or in conjunction with the stock module. Curved per application. Shop with confidence. Necessity is the mother of invention. It was already on the 10L side. I figured since it was a 70 motor it had the stright up cam gear and it does still have the original 70 cam since it only 16,000 original miles and seen no. Easy to work on, parts are available. Rotor phasing and vacuum revisited My understanding is that vacuum advance is used for rotor phasing, meaning: prevent the spark from jumping to an unwanted pole inside the distributor cap. This allows your engine to rev freely through the RPM's much faster and more efficiently than ever before. This can be run with a factory Duraspark II ignition box, an MSD box (MSD makes a Duraspark-to-MSD connector for a clean installation), or even a GM 4-pin HEI module. I custom build each one to your specific requests. Ford Duraspark - Performance Distributors Product Description. 1979-1985 Mustang Distributor If your 1979-1985 Mustang is running rough or cutting out at higher RPM's, it might be time for a tune up. Pinging will be the gage. Oftentimes the kit is no longer with the distributor if purchased used. Free shipping on many items. Whenever the distributor cap is changed, you should install a new rotor. All things Mechanical. Alot of performance builders say to recurve a stock smog distributor for a performance -built motor, replace the heavy spring with a light one. The distributor parts are standard Duraspark components, available at any parts store. A ballast resistor suitable for DuraSpark II installations is available from NAPA Auto Parts, NAPA part number ICR23 (1. That ignition was not an upgrade of the earlier ignition, it was an entirely new ignition utilizing a high output coil (Motorcraft #DG-316) having 0. Fully remanned and recurved duraspark distributors We disassemble, inspect, recurve to app on a sun distributor machine for your specific application. Engine should be at normal operating temperature at idle with vacuum to distributor disconnected and plugged. For Ignition, one common upgrade is the Ford Duraspark II ignitions. Do you want to unleash the hidden horsepower and make full use of the fuel efficiency inside your engine?.