if your gonna spend that much money on ctr cams, you midaswell go ahead and throw a extra 50 bucks in that total and get aft mkt cams, such as skunk2 stage 1, or some type of stage one cam. its really worth it. Another thing about the springs, if your gonna spend that much money on them, throw a few more bucks in and get the real deals. It just seems ignorant not to, find the cheapest total on springs retainers and cams, then check with omnipower, they have a cam and valvetrane deal for 800 bucks.