Which is waaay off from the FSM..... '65 FSM cranking compression spec for the 426 with 10.3 SCR is 130-165 psi..... right at what I would expect. I think your gauge musta been busted!
Nope, when I switched to superstock, the c.r, dropped to about 180 if I remember right, "bigger cam" !
The street hemi`s didn`t have much cam at all stock. Back then a well known drag racer from Ark. tyold me his all did about the same , he was pretty well off and had factory backing ,
