Well, I've decided to go ahead and go for a cam and some rockers. Here's the questions: I was thinking about trying out the F-303 with some 1.6 rockers. Do I need to worry about valve clearance with stock heads? Should I just go with the E-303 or something else maybe? The last question is which rockers should I get? Crane alright? Need some opinions on some parts so please feel free to post any.