Started upgrading the alternator today. I found a 140amp CS130 alternator from an '89 Caprice that my local NAPA stocked for $140. Unfortunately the case is larger than the old SI, which didn't fit the adjustment bracket very well due to me spacing the bracket out a bit for the crank sensor bracket, so I went and got one of those threaded couplers (I think that is what they are called?) to adjust the belt tension. The alternator came with a serpentine belt pulley, so I replaced it with a dual groove pulley and will run two belts on it just to make sure it does slip under load. Unfortunately both parts stores closed before I had it together enough to know what size belts I needed to get.
(sorry about the over exposure, I forgot I had the exposure turned up)
