i built a 408 with a t-56 for a friends 93 fox body.. we broke 4 t-56 before he gave these guys a call.www.rsgear.com they have a tremac t-56 that will hold 800ftq with all the goodies. as for clutchs the only one we got to stay in the car was a center force. we ran the renagade class and was the only car to run the t-56 and win...