tweecer or pms can be used. You could also get into the moates gear. The sct hand helds and the diablosport predators only work on the obd2 stuff (96 and up i believe). Any good tuning shop could set you up with a multi program chip, either sct or diablo that interfaces through the j3 port of the eec.
A forum community dedicated to Ford Mustang owners and enthusiasts. Come join the discussion about performance, production numbers, VIN decoders, modifications, troubleshooting, power adders, DIY tutorials, and more!