ROMANBUILT, I would use a T-5 from a 88-93 mustang a T-5Z or world-class are great and they aren't hard to find. All of the Tremec's would be great also, 3550 and TKO. I ran my stock T-5 in my 88' mustang with twin turbos
and never had a problem that was 500HP+. My buddy has a 94' mustang he is running a supercharger @ 11.38's in the 1/4 with no problems on a stock T-5. These are heavy cars with big HP/Torque mine weighed 3200lbs. I don't think you'd have a problem with them at all. Make shure you have a good aftermarket shifter, otherwise you'll bend the shift forks when slaming into 2nd if your not careful and also makes it alot easier to find 3rd in a hurry. Just my thoughts. Can't wait to order my kit! -wingnut13