I'm brand new at this, just got my own 98 GT last weekend. I found a 68k miles 4.6 engine taken out of a 1993 Crown Vic with 68k miles for cheap locally. Does it have the PI head and intake I would use to up the horsepower on my 98 Mustang motor? For that matter, would I be better off just swapping the entire motor? I see a lot of posts about the non-PI and PI motors, but so much info my head is spinning... Thanks!