So EVO, I see you list that you have a ported head. Did you have a local shop perform the work? I plan only a mild improvement over stock so will the stock (new) springs & retainers be find with stock cams but a 3 angle valve job and P&P? I want to tell the shop that I take it to exactly what I want. BTW has anyone used the ARP stud kit for the head? There is a used one on ebay that I am thinking about bidding on. I might even think about forking out the cash for a new one since I will bumping the compression.