upgrading regulator

yes Peter, a new alternator, up from the 37 to a 90, hoping it has the low rpm input. would it matter where the wires were spliced? guess that is my question. thanks

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