S/B rocker arm geometry and contact patch

There are a zillion threads here on “what cam” and if you start searching the forum from day one you notice they are all shelf cams being recommended. When did all the custom cam grinding become all the rage anyway? How did we survive!!!:eek: Just another interesting observation on a slow news day twiddling thumbs!:rolleyes:


Custom cam grinding came about in the 1980's when guys were sick of running junk.

Welcome to the 1980's.

And it was well before that for the pro racers.