Dear Rich;

You & Bald Eagle are probably right. Compare your cam & gear to one you know is right, (ran in an engine) etc.

NAPA gets a lot of parts made "off shore" and often counterfeit or with low QC etc.

Good luck. \:\)

PS: My money's on the cam notch.

John M., I.I. #3370

"There are no shortcuts to any place worth going". -Anon