My buddies 440 six pk Roadrunner had melted alot of the blue J2 wire that feeds the alt , reg and ign ballast. His was also an alt problem but his ended up being a grounded rotor that was a dead short for the J2 circuit that was the 12 volt feed to the field (rotor). I had to replace the alt to repair his and I had to replace some of the harness that was melted. I have seen it a few other times also so it sounds like RapidRobert has you straightened out. Good luck with it. Ron