Originally posted by 69galaxie500
I have a 69 390 galaxie 500 that needs a altenator, if I get a 100a external regulator alt will my regulator be able to handle it. Something about 50a at idle capable. Thanks in advance.
I really don't know for sure, but I would say that the reg. would be the same, its reg. volts, and you'll have about the same volts anyway.