Originally Posted By crabman173
Single pattern cams work Great --dual patterns are way over rated

Nothing is a for-sure thing with cam design, and it's always a case of "it depends." The only sure thing is the answer doesn't come from a catalog or a web site.

I'm still amused by a magazine article from years ago that was supposed to show the merits of a well-known cam company's new series of dual-pattern grinds. The test compared it to one of their older single-pattern designs. The old cam, IIRC, made more torque, made almost as much HP, and was more stable at higher RPM. I don't recall how the article tried to spin the results, but it didn't do that new cam series any favors IMO.