ok, so i got this thing running pretty good, and all the work i did to the motor gained me 200rpm. i assumed it just needed some tuning, but i havent been able to gain a thing, went from a 750 vac secondary, to a 650 double pumper and no change at all, other than it ran better with the mechanicals. now im back to the 750 with some way bigger jets, bigger squirters and a metering block instead of a plate. no change there either. i know there is more HP in this engine and i think it lies in the cam. i gained a total of 200rpm over a stock 460, i have more compression, bigger cam, ported heads and changed from logs to headers. compression is 10.5:1+, cam is a Lunati 280/292 .514/.543, i can post more details tommorow that is just off the top of my head. im thinking advancing the cam could help get the power band down a bit so i can use it.