upgrading regulator

are you upgrading the alternator in an attempt to increase low RPM output? Like pulsing lights at idle?

If you are going from a 37 to a 90amp, you need to bypass the ammeter (or replace with volt gauge) and carefully inspect and rehab the bulkhead connector (or do the MAD bypass).

You can't just patch a 90amp in place of a 37amp, utilizing wiring designed to support 37amp, 50 years ago. Trust me, things can get ugly, you want the piece of mind knowing it's solid instead of a time bomb
yes Joe, I have done the other upgrades as well. bypass, new wiring, new packard clips, trying to do it right, and that's why I ask questions here, for help from others that have done this before, and help with advice to keep me from frying my system, thanks for looking out for me :)