Having had one, I never did figure out the 25hp difference myself. The Nova had the ram horn exh. manifolds, but those aren't but about 5-10 hp, if that. Same 151 hyd cam, pistons, crank, heads... yada... as the L79 Vette or L79 Nova had. Maybe it was the carb, mine was a Carter, if I remember right.. Mine also had the HD clutch code, M20 and 3.73 gears, buckets, no console, chrome lower trim option, sharp car.
J
