Another ammeter bypass question

273valiant said

Stayed with factory size 12gauge wire from alt to ignition relay and now has a fusible link.
Here is my question. I used a 16 gauge fusible link on the 12g alternator wire. Is that too small for the output(stock, 50amp I think) Should I cut it off and put on a 14 gauge or am I safe?
(I also used a 16gauge link on the red and black wires from the ammeter)

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It depends a lot on how you wired it.
The rule of thumb is 2 wire ga. sizes smaller than the wires you want to protect.
This only works well when there is one path from the power source to the short.
Using the typical factory power scheme, only 1 fusible link was needed.
This was also true for at least one of the optional wiring schemes, the one used with rear window defrost grids around '73-'75.
Optional fleet wiring schemes had multiple fusible links. Bigger gage to protect the bigger wires, and smaller gage links to protect the smaller wires. 1976 A-bodies also used multiple fusible links

Basic concept
Fusible Links in Charging Systems with Ammeter

Stock output.
Output depends on demand. The alternator's capacity to make power is simply a limiting factor.
You can look at the dealership data books for your year and model to see what the alternator ratings were.
The 1970 Hamtramck Registry Library Page (1965 - 1969)
There was a '50 amp' alternator option in the '70s.