 Also the old Z28's ground effects and spoilers were now standard issue on the base Camaro coupes.Base models received a new raised spoiler for the first half production year.All engines were fuel-injected this year; the 2.8 (173) running 135 HP at 4,900 rpm and 160 lb.ft at 3,900 rpm, the 5.0L 305 cid V8 gained throttle-body injection, bringing net horsepower to 170; the 305 TPI manual transmission models were rated at 220 HP at 4,400 and 290 at 3,200, Automatic at 195 HP at 4,000 and 295 at 2,800 and the 350 TPI got a small boost to 230 HP at 4,400 and 330 at 3,200.