Hiyall,

I'm wanting to re adress my centrifugal advance on my Chevy HEI distributor.

Does anone know the optimum curve? When they should start advancing? How far should it advance? I been just changing springs around and testing it out but i'm tired of guessing, I guess.

Static advance is 12 degrees BTDC. Stock cam n crank timing. Stock vaccum advance. Car is red