BBC head advise...Indy? Pro Comp? Eddy Victor?

IQ52 said

Okay, shouldn't be a problem. My 451 with an M1 single plane, 290 cfm 452 heads and 9.5:1 CR makes 620HP.

Click to expand...

So you make good power with the 452 heads then? hmm
Im thinking for 500" they are too small?
Thats my problem...I cant decide to use the 452 alumn or go bigger!! ugh