Risks of Running High Amp Alternator?

The 1963 and 1965 Mopars have dedicated buss-bar feed-thrus in the bulkhead for the thick ALT (blk) and BAT (red) wires, .

Whenever someone starts preachin' to me about "how smart" the engineers were that designed something, or that they "built it that way for a reason" I think of stuff like THIS. They KNEW the answer, and partially solved it with the police/taxi/ fleet wiring modification