Putting a DOHC Cobra motor from a 2001 Cobra in my GT. The car is an auto gettin built up with Jerry mods. Im lookin fo rthe car to go into low 12's (daily drive). thinkin of stayin all natural. Thinkin 4.30 gears, 3500 stall torque converter, P/P heads. lookin at cams. what else will I need to do to the engine?