Thanks for all the help guys. Here's another question. I had to use taller valve covers because of the taller springs for the solid roller cam. I'd like to switch back to stock valve covers but still make decent power with a smaller cam. How big of a cam can you use and still maintain stock valve covers? I don't care if it's less hp how the motor sits now it made 740@7000 so to go to something smaller and a little easier on the valve train would be great. Thanks again.