Bob - did you measure where your motor is sitting using TTi specs posted earlier? 70 Dart, 4 speed, manual steering with 1.03 bars. Cleared everything perfectly. At first I didn't have the motor in the right spot and it was hitting one of the TB. So measure first before anything.
Yes I did it was off by 1/8" and you can see in photos above that an 1/8" doesn't seem like it would even make a dent (pun intended) in how far it needs to move.
It's either the engine brackets, or the k-frame isn't sitting where it should be. I had a friend ask me the distance from the top of the K-frame engine mount to the frame rail on the passenger side of the K-frame. I didn't ask why but it's 4-1/2" and I'm waiting on him to get back to me so that might tell somebody something or give you something to compare to another car.