70 duster: updating, and a no-dough pro-touring makeover
Don't have any really ideas, but i wonder if you put it back together and had someone blip the throttle and run the rpm's up, if you wouldn't see something, moving around. Maybe you've done that, just a thought.
I do know that for some reason, getting a belt alignment is tricky. Seems like it all looks good, but it's an optical illusion, and it's not. Maybe things aren't lined up as they should be? Just a theroy, but that might explain the twist in the belt.