Thanks Guys. I had read that 416 head article, along with another on TGO, and have hopefully copied the modifications shown. These heads came with 1.84 intakes stock, I basically narrowed the guides, removed anything that felt rough to a fingertip on the intake ports, and smoothed the ex ports. I didn't want to screw them up, so I didn't get to wild with the grinder. I'll CC them to get some numbers, but what I've read seems to point to 60cc chambers. On the cam, I talked to Harold Brookshire, explaining what my setup is ( converting to TBI is in the mix later ), and he mentioned this grind ( single pattern Vodoo ) is the strongest lowwer RPM he designed. I have run an Isky 262 before ( simular #'s ) and liked it, but it was on a 108LC. At present, I'm running a Comp XE 4X 254, but I think some lobes have gone as its giving me problems. Anyways, thanks for the feedback. Al