I'm starting to think its an epidemic..

Alright guys.. I have a question.. I got my Dart going again the other day.. It had been sitting for a year. It has a 360 in it, and it will NOT charge for the life of it. I've drove it like that for a long time.. Just had to make sure to keep a spare charged battery with me, just in case. BUT.. we've did everything that we could think of other than rewiring it. I really don't wanna do that because its just gonna all be tore out when it goes to the shop to be restored. We're put a new alternator on it, a voltage regulator, all kinds of stuff.. and the only other thing we can think of is maybe a corroded wire? Whats y'all's thoughts? I'd really appreciate the help. We also just bought a '79 Ram Charger that has a 360 with the same issues that we can't figure out! I'm starting to think its an epidemic! lol :help:
Thanks in advance!
Wendy