Contact Bowtie Overdrives, TCI, Bowler or any of the high performance trans builders, they will tell you what you need. I can tell you this it will have to have all the goodies inside. Kolene Steels, upgraded 3-4 clutch pack, larger boost/reverse boost valves, billet servo's, Beast Sun Shell, Wide Kevlar Band, 5 pinion planets, 29 element sprag, modified pump possibly 13 vane and the Torque Drive Kit. I'm sure I'm leaving something out. If you listen to Bowtie Overdrives, if you are going to run it in a street car don't need anything more than a 2000 stall. The 700 doesn't like the heat. Oh yea a good cooler. I run a 700R4 with a 2k stall. The motor is a blown 406. Haven't beat on it yet, don't have all the goodies inside yet.