OK, I thought I had this figured out, but sometimes I turn out to be wrong so here goes...
I recently built an '85 TI engine for my Omni GLH Turbo. I used an '89 water pump with the smooth pulley and common block belt setup/routing. I also used a ND alternator for whatever it's worth.
Everything seemed OK and the car was running great and not overheating. I started to get a chirping noise after about 100 miles and apparently it threw the belt and overheated while my brother was driving it.
I had made sure to use a straight edge to align the alternator pulley with the water pump and adjusted the little steel sleeve on the alternator pivot so that all seemed good. The belt alignment seemed very straight to me. Anything wrong with this setup? Perhaps I overlooked something?