Stop in for a cup of coffee

dukeboy_318 said

So I’m wondering if I should swap out the harness in my 64 Polara then to a later model with the fusible link since I have to replace the under hood harness after my fuel fire

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It will be a lot easier to just wire in a fusible link.

Not a guarentee of no damage. Will provide some protection of the bigger wires.
Fusible Links in Charging Systems with Ammeter

Will not help much if the smaller feeds, like if 16ga ignition-run wires short to ground.