I agree that I picked TOO small of a cam, as most guys pick TOO large of a cam. I did install this cam, but am able to buy another, as I am not happy with it.. The reason I picked the heads is that I was hoping going from 76 cc chambers to 62 would raise my compression enough to make it doable to use a bigger cam..Once I have the engine out, I could always install some flat top pistons I guess. That along with a bigger cam I would hope to produce some more power.. Would you suggest the Vortec heads over the heads I had picked?