Joe, I'm doing a new build using 351W 69 block, Mahle pistons 1.230 CH, 20 cc dish, .040 over for 4 inch crank, 6.250 Eagle rods, Scat super lightweight crank, using AFR 205 heads, Super Vic. jr. intake. I already have those parts, and the solid roller cam I have sitting around is the Lunati #51022 - 256,264 @050 .646 in. .626 ex. lift 106 LSA. I'm trying to get 650 hp with this, is this possible or do I need more camshaft. The car is a 1968 Mustang, 2700 lbs, C4 trans 5200 stall, 4:56 gear. I'm aiming for low 10's . Just want to know if I'm leaving too much horsepower on the table by using that Lunati camshaft or should I really use something else or do you have another suggestion for this?