disc conversion then alignment no good
When I swapped out my 69 Barracuda front brakes for '73 up spindles I had to use the Moog off set bushing so the alignment guy could get the wheels where they needed to be. The alignment shop should have told you that they couldn't get the front end aligned properly, if they didn't say anything you need to take the car back as most shop give a one year warranty on their alignments.
PS - I installed the off set bushings as per Moog instruction sheet and the guy still couldn't align it. I had to remove and re-install the bushings opposite the way the instructions said to get the alignment correct.
treblig