Yup. If I ever won the lottery I would basically just build engines and test various parts. See what a "set of heads and cam" really net you. From my point of view though? Yes, a set of cam, heads and intake can net 145 horse. If the heads are setup right and bump your compression up. If the cam is right and has good lift/duration. And if the intake is a good design. Let's not forget how much power you can gain just by porting heads. Horsepower is out there folks. Just gotta find it.