600hp on a stock 6 bolt is doable, and has been done plenty of times. The guy who tuned my car from turbocharers.com pushed a stock bottem end on a 1G Talon to 550HP at all 4 wheels. Factor in the 36% drivetrain loss, and its waaaay over 600HP at the crank. He said he was trying to blow it up, but it just kept making more and more power. He was telling us this with a 1400 RWHP Supra sitting in the corner under a cover, hahahaha Chris is crazy

91 awd: 60-1, 880's, E-Prom, etc.
93 awd: JDM 6 bolt, K&N, full exhaust, Wally 255, otherwise stock.

R.I.P. the original "Factory Freak"
15.5's with short ram and catback only
1996 RS 5-speed