I remember back in the 80s I was in the old Mopar Muscle Club. We used to get a black and white zerox printed newsletter. One issue had a reprint of a Motor Trend test on a 440 Dart. Seems like after blocking the heat riser open and a little fiddling they ran a best of 12.71 on E70X14 Goodyear Speedways! Sounds like it woulda been a lotta bang for the buck.