anyone running a th400 hydramatic?

th400 is just as strong -- a friend of mine builds them so i can get @ cost. so it would be cheaper for me...much cheaper.

727 is likely where i will go, but just wanted to see what others are running.

i likely will see 600HP / 600 ft-lbs max (? rough guess i havent built the motor yet) so i don't need to go crazy.