Risks of Running High Amp Alternator?

I have a lot of electrical load in my car as well, I have a 120amp Chevy style 1 wire alternator with an 8ga wire going straight to the battery. I bypassed the factory ammeter by splicing the wires together. I also removed the black factory wire from the bulkhead connector in the firewall that originally went to the alternator, and then I removed the main power wire pins from the bulkhead, drilled out the hole where they were, and ran a new main power wire directly through the bulkhead. I left some extra slack in it in case I ever need to remove it.
The upper circle is where I cut it from the dash harness, the lower circle is what goes directly through a drilled out hole in the bulkhead. They are the same wire, they look different because part is shrink wrapped.
The reason you want to drill a hole and remove the connector pins is because they are super thin and will melt with lots of amps
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