[RACER X #99]

You guys are a little confused with alternator amp ratings. No alternator the size on a car can put out 60-75-140 amps. Alternaters are putting out amps per hour. A 60 amp alternator will produce 60 amps of dc current per hour.
The number 4 wire you are using is the minimum size wire for a 100 amp electric service to a house.

Any wire larger than a #10 to your amp gauge is a waste of money.

I knew 5 years of school would come in handy some day.

Cranky