My 67 Barracuda with the 273 auto and a 3;23 gear. It ran a 16.64 at 85 mph during time trials and it spun the tire bad during eliminations and never raced it again.
85 mph represents a P/W of perhaps 19.4, and so at 3450 raceweight might be 178 hp. If your car was closer to 3650 then 190hp. IIRC the 273 2bbls were rated at 180hp, so it mightabin the slowest car you ever raced but it was no turd.