I think the compression ratio with stock pistons, 906 heads and the thin 0.020" head gasket is supposed to be about 7.5:1?
Sounds like you have a pretty mild cam? what is the duration?
I'm guessing the cam you have is the 252H High-Energy 206/206 @ 0.050", 0.425"/0.425" 110 lsa, 106 cl?
It should work OK.

Last edited by 451Mopar; 04/27/11 04:53 AM.