'not detonating with regularity'....

famous bob said

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 ,

Click to expand...

Well, you can't say that the FSM does not say what it says... it is right there in B&W: 1965 Plymouth FSM. I don't know what to think..... the FSM and my experience say one thing, you say something completely different... For the life of me, I can't figure out the reason for the difference.

You're talking about cranking compression in PSI, right? Stock factory pistons that came in cars sold off of the showroom floor, or did you have some sort of different high CR pistons in there for drag racing? Running a high octane fuel mix maybe? Just trying to make sense of this....tnx.