Down here in Mia, the Supra guys are Neal, Pinto Paul, Miky, Adrian and Fayaaz. They people have been building 3S, 4A, 7M, & 1JZ before many of us were born. These are the guys who did research before computers, by trial and error. But call Mike's turbo, they have good warrantee for a year plus they damn good. If you need anything, let me know and i'll do my best to point you in the right direction.
Also if you want to just keep it stock, keep the twins, go with the Lexus SC AFM, walbro fuel pump, Q45 throttle body, and a 4" intercooler. Get the resister box from a 91-95 Legend and have Jerry in Hollywood remap the ECU for you. Then settle with the TT injectors and your good. $600 will be a round about price for this man and you be good. Proably around 480hp @12lbs, 14-15 lbs and you'll blow those bad boys without them being rebult.
And thats how the cookie crumbles Mon....:icon_razz