[QUOTE=Coach62;715488]I considered that, it's just a pretty light duty trans. At some point I'd like to be near 550 - 600 HP. I just don't know if I can trust this tranny to be reliable at that power level.[/QUOTE]

For you, probably not. But for the OP, even the Level 1 (above link) is rated comparable to the TH350 (350hp), which is plenty strong for his 350 engine.