The Tremec 5 speed probably won't survive. The upper limit of the TKO's (IMO) is 400rwhp/400rwtq. anything north of that and you should probably look into a T56 or a Legend.
To answer your question, Centerforce probably makes the best stuff for a street car and their stuff can get pretty racey. Give them a call and they can custom build the whole unit to your specs and driving style.