Jerry, I know for sure the governer in a 140/pg is different than the non140 pg's. I think the rest of the pg is pretty much the same as non140 pg's. But what your describing sure sounds like a funky linkage adjustment. Randy (Cap'n) Hook '63 ragtop 110/pg '65 4dr monza 84/pg '60 700 4dr 80/soon to be 4spd.