ok i have a built 355 around 400 horses 400-450pds of tourque and a TCI 2500 stall my first gear whines and slips into secend around 4500 someotimes goe to 5500 rarely and in between shifts it takes like 3 seconds to shift its starting to leak from the rear seal and the pan tried new pan gaskets well has anyone triend the TCI probuilt 700 or is there somethin better to bolt in i would like the shift the car at 6000 or 6200 at the track the stock tranny isnt handleing the 355 well opions anyone? thanks chris