I took the Powermaster alternator to my local NAPA store today and it tested perfect on the machine. He said that the numbers could not have been better. He then tested my backup alternator and found it to be putting out too little voltage down low.
I put the alternator back on the car and I made some voltage checks with the key in the ON position. The battery was at 12.0, the alternator was 11,85, and the blue wire at the VR was 11.8, volts.
I am at a loss as to what to check next. I am going to review my wiring before the MSD swap to see what wires were being bypassed at my ballast before and see if I am missing something on my feed to the MSD 12v red wire.
Could I have an issue with the blue 12v wire/s that would cause the ammeter to fluctuate?
Thanks again,