I just picked up a set of ported npi heads and they have the stock npi cams, they also have COMP springs and new valve job. I've been looking at MHS stage 2.5 npi cams. I'm going to be installing the heads with the help of my girlfriend's uncle (graduate from Wyotech and now owns his own shop). Would it be a good idea to save and get the MHS heads or just throw some pi cams on for now and later get bigger cams?