I do. it fits, way better than the tuff stuff 1-wire i had, zero issues. yes in the same high mount passenger side position. this one, with a single groove v pulley. https://www.summitracing.com/parts/TFF-7771
Yes, I have. Yes, it fits. Yes, there are multiple 390/FE brackets, and I have not tried them all, but should position the alternator at the same position with any of them, in order to align with pulleys.Has anyone put a 3G alternator on a 390 in the high mount position?