galaxie

I bought a Galaxie the other day. I know, this is a Mustang site, but the tech stuff is similar. The car is a 1963 and has a generator. If I remove it and put on a one wire alternator, disconnect the voltage regulator, what would this to the electrical system/what else would I have to do...

I'm looking at buying a 1967 galaxie 500. The emblem on the car says it's a 390 motor, but the owner told me that some one put a 428 in it. I know there is probably not a lot of difference between the two motors, but does anyone know of a way to tell if it really is a 428 and not a 390. Any...