Is it stock cam and if it isn’t do you know cam specs? And did you squirt some oil in the cylinders beforehand? I’m with Kimmer, I’ve seen a .040 over 340 built with 10.5:1 and a stock replacement sealed power 340 cam come up to 168 on all eight after the rings seated in.
Basically stock 340 lift. 107 lobe separation. [email protected] 270 duration as far as I can tell. It's an old isky cam. Been getting some conflicting specs. I have no cam card or any inclination of the cam timing. No oil squirt.
