Wiring question--amp guage

[Russell Ashley]

I'm re-wiring my truck using an EZ-Wire harness and I'm wondering about the capacity of the original amp guage. I've rebuilt my cluster and I'd like to use it with no other aftermarket guages. The amp guage only says "D" and "C" so I don't know the maximum current it was calibrated for. I'm using a new 10-SI alternator which is not a one-wire alt. I told the parts guy it would go on an 1980 Camaro with A/C when I bought it.
My question is, How many amps is the stock guage designed to handle? Is my amp guage going to go up in smoke if I let my battery get low and the alternator is charging heavily for a few minutes? Is anyone using the stock guage with an alternator with no problems?

Any comments and/or advice is appreciated.