I'd be greatly surprised if adding an extra shunt would ever make that particular ammeter register correctly. Slightly closer, possibly but you're still measuring the distance to Mars with a yardstick. I've been using a 100 amp alternator in mine for 4 years or so, Jerry and the ammeter has never even felt warm. Back when I mentioned I was doing this conversion, I was warned I was going to turn my truck into Krakatoa.
