MSD distributor guru

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"

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Great. I won’t send out a distributor that is locked out, and I test every box for retard and account for it.

Do what you want. But I know for a fact that the guy who made me buy a test bench has enough wins and championships under his belt with his distributor and carbs that his success is indisputable. And he won’t lock out anything and guess at retard.

And I will continue to tell people to NOT a lock their distributor out. I’ll Jenkins said decades ago that the curve should never stop advancing. He’s not wrong, but there are times when you can advance or retard the timing to achieve a result you chose, but guessing at retard and not accounting for it makes no sense.