283/270hp, 100% correct. Lot's of NCRS awards which are included. one of 1,621 built with duel 4 barrel carbs, one of 664 produced with original 4-speed Borg Warner T10-1 transmission. Also equipped with rare Wonder Bar AM seeking radio, courtesy lights, off-road exhaust and 3.55 rear axle. The best 57 original Corvette you will ever see. Stunning to put it mildly! This black beauty is a must see!