Vacuum advance removal, is it possible?
...............If you have irratic spark timing, get a new distributor. Vacuum advance doesn't impact this.............
This is the second time in this thread that someone has claimed this, and...............
IT IS NOT TRUE when speaking of a high performance engine running a fair amount of RPM (5-8K) with either a single point or breakerless Mopar distributor.
THIS IS a well documented weak point in these distributors. I no longer have the tons of rod mags I used to, but anyone who has ever done much work with a distributor machine knows just how poor these distributors are when compared to a dual point or decent aftermarket unit. "Been there, done that."
In fact, the entire Mopar V8 dist. drive system is a "little weak" when compared to the traditional GM designs.
If you look back through the years of Mopar racing, there are all kinds of experiments with stuff like rubber timing belt driven distributors, etc, all trying to solve the poor design of the original "stuff." This of course was back in the days before crank triggers came along