What size alternator

i ran a 78 amp I bought at work (napa) and our reman company is BBB Industries, they also own wilson reman company, and their "78 amp" alternator only put out 60 tops, and i went through 4 units before i actually found a legitimate 78 amp alternator. So word to the wise, have it bench tested in front or your own eyes before you pay a few bucks more for an improperly badged 60 amp alternator. On the flip side when I did finally accuire my 78 amp unit i began to melt all of my connections. hence why i did the 4 gauge charge wire/voltmeter conversion.