I have a 96 GT I think it's stock, should i keep this and get the PI heads or should i just sell and get a 99 gt. If I keep the 96 and get the PI heads what else would i need to do the swap. I know they sell a kit with allthe gaskets but do i need to get computer done,or something eles changed/strengthend? How much money (estimate) am i looking to put into the swap+extras 


