I'm curious. I have a 383 sb with 10.5 to 1 comp ratio, AFR 195 flow heads, Rpm air gap intake, 750 cfm carb, flat tapet roller rockers, headers, and my cam will be at 520 lift fully open. Should i not exite my self thinking im going to get close to 500 ponies at the crank???? I know its hoping for a lot but realisticly, how much hp should i expect. Any Ideas?