Hello,
I used the Pertronix III billet distributor in my 383 years ago when they first come out with the billet distributor. I did not want to deal with any issues the old distributor may have had and I am very happy with the results. Two items, the Pertronix unit does not use the ballast resistor and vacuum advance is extremely important as has been stated. Then you have a choice of manifold vacuum or ported off of the carburetor, I went with manifold vacuum.
Dennis C.
On Sunday, August 11, 2019 at 8:42:00 PM UTC-7, Bill Stevson wrote:
I just replaced the points in my '65 383 dual-point distributor with a Pertronix III Ignitor (also got their flame thrower coil) and can't find any info on whether or not I still need the vacuum advance hooked up. I haven't gotten a reply to my questions from their tech dept. Wondering if anyone here knows. Bill