Budget racers quickest stock piston and head motors

Ok, just to give an example.

I ran my '71 Dart down the track about 7-8 years ago. Bone stock 318 2bbl, exhaust manifolds with dual exhaust, column shifted 904, 7 1/4" rear with 2.94 open diff., 14" street tires. 17.67 @ 76 mph.