I agree with Ronmiller, I think you need more converter more than anything, but it will probably like a bigger cam to go with it......especially in the duration. I like everything else on the cam where it is. With a BBC with square ports and small inches it really needs a minimum of 5500 stall. The victor jr is what I prefer to. If you do put in a bigger stall speed converter a dominator will probably add a tenth or two as well.