To the dr.

You lock down between 38 and 52 degrees of advance?

That's above the 36 degrees that most Chevy rodders recommend. Now I'm interested.

What allows the engine to run with so much ignition advance? That is what I want to know. Is my .040 over SBC 350 built in such a way with the cam etc... that I should consider bumping the total timing up to say 44 degrees on 93 octane pump gas ?

If so I can put 8 degrees on the crank with the 28 degrees in the distributor, all in by 3000 rpm and then dial in the rest with my MSD module and see if it runs better with up to 44 degrees of total advance?

Guess like you say try it till it pings and back off.

How about the carb question - 750 Edelbrock Performer or 750 Speed Demon. Which one would you run for an ET if that was your choice, and why?