What class would a '57 T-Bird with the 285 Horse Dual Quad 312 have run in in 1957? The oldesd NHRA Rule Book I have is for 1964. It only shows 2 Sprots Car classes, A and B Sports and I think the Bird would be below the weight to horsepower ratio for B Sports. It would go in F Stock as near as I can figure. Any idea where they would have been in 1957. Want to do car shows and cruises's in 1957 drag race trim including class markings.