David Ray said

So, just what is bad about a degrees retard in the upper RPM's????

Answer: Proven for decades, ABSOLUTELY NOTHING, in fact, it is a benefit.

I have been doing this stuff for only 43 years now (novice at it, compared to some of the new day "engineers"), and have built/modified just about every make and type distributor known to man, for street, and all out racing, of all types, so far. I also worked for Holley, at track carb tech, and built many "Split-Duals"

Click to expand...