Tcodi, dont forget you need the combustion chamber volume also to somewhat accurately check the c/r of your engine. Also, the deck height, and thickness and bore diameter of the head gasket...a few cc's can make quite a difference. Also, and I think this was said in an earlier reply, just because you're going to go with a smaller cam, the springs on there now may still not work...they might be ok for the lift, but may have too much pressure, and that will kill your new cam within a few minutes on the break-in. Check the things mentioned here, and go from there....its more work, but will be worth it in the long run. Yes, you can use the cam bearings if they're not scored deeply..check them when you pull out your cam (carefully) Also, use a new timing chain and gears if you have any doubt at all of the condition of the ones in there. Keep in touch here, we'll help you. Oh, nothing against Comp Cams, but keep in mind, they're mostly reading from a computer screen, not from experience, so you might not get the best recommendation. I would check with a smaller cam company for the info you need, Isky for example, Howard's cams ( I use them exclusively), there are others. You get much more personal service from the smaller ones.