Having owned 4-67 Dart GTS's and several 68 and 69 383 Darts I can say that the 67 was underpowered and adding headers, dual plane intake, cam, and larger carb sure woke it up! The one thing I really liked about the 67 was the manual front disc brakes, probably the best brakes on any 67-72 Dart until they went to single pistons in the 73's.
I still work with Mr. Norm and have never asked him about the Stage 2 or Stage 3 67's. I will have to ask him the next time I see him.
