That's what I gave him moments before your excellent post...
Then he asked about a regular 'ol 302...
From my faulty Wiki link...
"In 1987, the Mustang received E7 heads and a more capable intake manifold. Power ratings jumped to 225 horsepower and 300 ft·lbf torque. In 1989, the Mustang's speed density air system was replaced with a mass air system. This change slightly reduced factory horsepower but it also made Mustangs much easier to modify. With the new mass air system, changes made to the intake, engine, and exhaust system would be recognized and compensated for by the ECU, resulting in a correct air/fuel ratio and optimum power. In 1993, Ford switched to cast hypereutectic pistons in all 5.0s, and also re-rated the GT at 205 horsepower and 275 ft·lbf torque"