Mustang. TPI is a PITA to work on period and nothing is really cheap for the cars. Yea an intake might wake up a TPI setup, but most intake setups are damn near a grand in price. My friends 92 coupe went 13.5@100 on a stock motor. Only thing it had was exhaust, gears, suspension and tires.

TPI make a shit load of torque but come 5k they die quicker than a 5.0 does.