I have an Ignition Technologies wiring harness with my 3800SC swap.
The Red wire going to the lug on the alternator that goes to the hot is 10ga.
I read where GM used a 10ga wire on later years as stock.
With a 110 amp alternator though, that seems like a small gauge for that current.
Should I maybe run a 6 or 8 gauge separate from that wire?
Thanks

Careful... "Amp rating" for given wire is Gauge/Diameter And Length and other specs.
That why most charts say amps per Hundred Feet etc.

vs you have maybe 3 feet max from Alt to + box under C500.
Sim for battery cables that often are only 1 to 4 feet each in most vehicles. Is why most OE battery cables are 4ga or similar metric size stranded wire for cars and other light vehicles (Light Vehicles are mostly < ~ 10,000lb GVWR) but bigger vehicle can have same alt out and battery cables.

If you have large power eating things... run them to + box, maybe get a heavier + box or even run off the alt out terminal.

Note that Amp Rating for Alt's is nearly always Peak Power.
See my Cave, Watt Story

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