Alternator Wiring Upgrade

Hello, was hoping to get some additional information, suggestions and insight.

I recently had an alternator rebuilt and upgraded and now puts out 80 amps

I have read and been told that when upgrading your alternator it is advisable to consider beefing up the wiring system also. My wiring is factory for my 72 340 Duster

The guy who rebuilt it said that he would not change anything in the wiring system and it should be good, but I wanted to get some more opinions from actual mopar enthusiasts / people who might have made these mods. I want to avoid unnecessary heat etc.

Has anyone done this? I am running electric fans, water pump, fuel pump etc, so my electrical needs are quite high.

Any info would be appreciated.

Thanks