440 mounted with a motor plate in a 67-69 Dart

BBBCUDA said
If it is belt alignment that is the problem, have the water pump housing milled. I have a 1/4" Barton plate, and I just took .250" off the pump housing. The alternator bolts right to the plate, belt lines up fine. It did on the last one too.

Oh I fixed it and the alternator also, just had to space the crank pulley out a mile LOL and use a two grove water pump pulley.