Alternator bolt threads stripped in the head

ok guys this is my first post..i have a 72 dart 4 door with a slant . i just put the slant in it a few days ago and here is my question . my alternator is melting a field wire when i crank it over ...my first thot is a alternator but could it be a ground . how many should i have on the motor i have one from the battery to the p\s bracket . sorry for jacking your post i couldnt figure out how to make one .