120 amps alternator for corolla bigbody

[markygy]

Thanks.
Pero that means since it can output more, the standard wiring awg rating might not handle the full load demanded?

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It will only output more if there is a load that demands the extra amperage. If your car's whole electrical system needs (demands) 50amps to operate and you have a 80amp alterantor, 50amps lang ang bibigay nang alternator mo since ito lang ang demand. If you want to get the whole 80amps that your alternator is capable of, mag add ka nang load/demand, accessories.
Remember that any given electrical component will only draw as much amperage as it needs to operate.