Is davis3 your birth-given name? ;-)
Welcome to SM.
I'm impressed with your capabilities to drive an 88 mk3 turbo that isn't running. (Still giving you a tough time)
Post some pictures! If you're going the drift route... I'm pleasantly curious with what setup you'll have.
Not that a 7M isn't capable of bouncing rev-limiter lap after lap without giving way, but I fear you may want to seal up and have a stout valvetrain to be competitive.
That, or going 1JZ. Normally wouldn't make that direct recommendation for making a fast Supra, but they do well in the drift world.
Jeff