stock gage output wire 67 barracuda engine harness

Yes its a 1 wire Alt. Im sure you know what your talking about housewise, however houses are typically 110V plus amperage. Guys are typically running 6 ga wire with 100 amp alternators. This is 50.

You missed my point. a 10 ga wire in a house circuit is fused for only 30A, something like the water heater