I'm sorry but I would have to diSagree with you. I don't know what diagree means though. If you look at all the people who class race they almost all run powerglides because it is a better transmission for all out racing. Yes most of the STREET supra's that aren't into class racing run a t400 transmission just because it's more of a street transmission being a 3speed and all vs the power glide. And with most of the high HP supra's being glass racers and cars and all they almost all run the PG trans vs. a t400.