Mechanically stock EZ36
Affordable aftermarket ECU - tuned to about 270-300 HP (91-93 octane, up from OEM 87) with a OEMish (aka. "flat as Kansas") torque curve (or flashed Euro manual tranny ECU)
Newer 5 speed w/3.9 ring and pinion (swap a FWD 3.7 R&P if you want to open the box)