Well, Duraspark systems are cheap and abundant in junkyards, but a bit of a P.I.T.A. to wire up. Pertronix is an easy install, but cost (from what I've heard) about $75. I got a new Duraspark distributor for $45, and new module for $20.00, coil is about another $20. Cap is about another $15-$20 (unless you want to use your older-style cap, which I did for years) and new wires will be required for the later-style cap...
The "tens of thousands of ohms" that you are refering to are at the end though, not in the wire/cable. If ohming isn't important, then neither is your "missfire"?
i went from a stock ignuition to the following msd 6a box msd billet pro dizzy msd Blaster SS msd 8.8 super conductor wires i gained about .7 in the 1/4 from this
What misfire? I don't understand. Were we talking about a misfire? I also didn't say "ohming: wasn't important, just over-rated and misunderstood. Resistence is an engineered part of the circuit. This article is an interesting read: http://www.magnecor.com/magnecor1/truth.htm
I agree. MSD distributors for Fords are near identical copies. The magnetic trigger is so simple it will never be outdone. Many have tried, but magnet + steel = simple and tough. I have used my Duraspark to trigger both the stock box and MSD6. Why pay for an MSD magnetic trigger distributor, when you can grab one from the junkyard? That said, I have concrete saws that have been converted from points to Pertronix I and run flawlessly. Pertronix II is said to have bugs that need worked out. They took it from simple Hall Effect box, to something that tries to manipulate timing like a CD box and it is more complex than they thought. At least in making it durable and reliable. That applies to the II model only though. Dave
A few years back I had a Fox-bodied Mustang with a 347. It ran 10.30's @ 130 with a Dura-spark distributor, coil, and module. I shifted at 7000 and went through the lights at 7500 RPM. After a couple of years of hearing my friends harp on me for not running an MSD, I bought a 6AL and installed it. My ET and speed were exactly the same, but it did have a smoother idle. As far as being a pain to wire up, if I remember, aren't there only two wires from the module to splice into the harness?
fyi, for those having trouble with the Mallory Unilite Modules, Mallory does offer an Active Power Filter that is susposed to protect the module from electrical system spikes that would normally kill the module. It's half the cost of a new module so it's cheap insurance.
