318 Cam selection help

Comp Cams makes a line of cams called "Thumper cams" that have that ol'skool sound. IDK why you would want a PJ gear drive, but have at it.

The cams lift and duration (Mostly duration) dictate the cams useable intended RPM for the engine. This may leed to a converter change and/or a gear ratio change.

Go to comp cams .com and look them up.