Here's one that slipped through the cracks.
1963 Plymouth Fury (convertible) 361/265 HP (2-Barrel)
Weighed only #3336 lbs. (Suprisingly light)
Wt/Hp = 12.59
1968 Class = J/SA
Made it to the J/SA Class Semi-Finals at the 1968 Winternationals, and 1968 Springnationals.
With the right components, they could get into the 13.80's
Guess who's car that was,,,,,,,,?????