I know the only diference is the gt-40 heads. It dosen't have a cam in it right now so i'm going to have to get one. I have a 95 gt with a racing aode with a 2800 stall and stock gears. I'm going to be swapping another aode with a wide ratio gear set soon. I'm going to have a friend port the gt-40 heads and explorer intake. It's my daily driven car and i'm not to worried about the idle. I'm going to get a chip after I do the engine and trans.