 The TPI 350 motor was visually distinguishable from the TPI 305 as the bumper cover decal had "5.7L" added to the "Tuned Port Injection" decal.It can also be determined by checking the VIN (8th character, F=305, 8=350).The 305 TPI equipped with automatic transmission came with 190 hp, while the Manual 305 TPI got a rating.