Budget racers quickest stock piston and head motors

Stone stock 1965 383, fresh bearings stock 516 heads, 528 Mopar cam, street dominator intake, 13/4 headers, 850 Holley

car was a 1965 coronet 3500lb with me
727 with 4500 converter, 275 drag radial and 4.56 gears went 7.96 1/8 and 12.60 1/4