Aggressiveness of the lobe, quality of parts and RPM are going to determine maintenance schedule and longevity of parts.

Max effort? Fun cruising car? Cam can always be swapped to one that better suits your needs/goals.

.660/.640 is not that big and the springs seem fairly mild. Need to know lobe design.

Last edited by CMcAllister; 11/13/19 01:05 PM.

If the results don't match the theory, change the theory.