I think you'd be better off going NHRA Stock class. For some unknown reason, NHRA has the D/Dart listed as Super/Stock "Only" and the engine is factored at 275HP. I think it has to run in the 10's. My car's best time was 12.90's at 105 when it ran D/Stock back in 66.
Do the Stock class with the 235HP engine and you'll have to run in the low 12's to be competative.
