So i am going to put my car back to stock. I have a 99 gt with a zzp built tranns and zzp pcm caned tune,the tranns is upgraded to the hd and some other goodies with 3.29 gears. I dont care for the zztune and i dont have the original pcm. My question is with the trann is there anything i need to know and how do i go about getting an original stock tune and will everything play together. On another note i have white smoke and water in the oil so i will be getting i new engine hence why i am going back to stock plus i just bought a 16 mustang gt so iam done with modding the gp but still want to keep it i have had it 17 years now. thanks for any help you all give me
