OK, a friends putting together his Dart tall deck. Shop says to use the standard length oil pump drive shaft, ~6 11/16". When you use this and test fit the MSD distributor (no intake on)the distributor appears to bottom out, yet it still won't engage the notch on the top of the oil pump shaft Now if we put the intake on, I'm sure that would lift the distributor slightly and make the problem worse. If we use a long drive ~7 3/8" it appears to work OK. Just wondering if the shop was off on the application? Infomaniac, which shaft did you use on yours?