572 Build

Why did you feel you needed presurized oil to the lifters? The heads are spray bars, correct? I'm not sure you'll see much in the 4/7 swap. The basis for that swap is more the internal harmonics and the intake flow than feel. It should help depending on the rpm range you run. IMO - the cam's a little small but this is a street/strip deal, right? A buddy made 875 on his RB based 496 with ported -1s and a cam similar to what you have there. You've got a much larger cross section there - I think it would like more to make more than 1.5hp/inch.