Fusing between alternator and battery.

I am not sure, but it sounds like you have run twin 10 gauge wires from the battery to the alternator. I would run [piggyback] one wire of the same size as the car has now [#10 or #12] from the battery to the alternator stud. Add a fuse or fusible link to it. Leave the rest of the wiring alone. Your ammeter should read one half of the current going into or out of the battery. I don't know how this would affect the voltage regulator. ------ 67 Dart or Mattox could chime in.
Hello,
I got this setup from slantsix Dan from the Slant Six Forum. He's the electrical goru of the forum. I used 4 fusible links with 50 amp fuses, two lines of 10 gauge wiring with each line having 2 fusible links, one at each end, inches away fro the alt. output and inches away from the battery pos. It sounds like overkill, but I want to avoid any wire melting/fire through the bulkhead connector. I was on Uncle Tony's Garage live stream last week and someone else suggested fusing the wires together as one line with just using 2 fusible links and leave the rest of the wire alone, too. If I can get my ammeter down to 50% I will just use that to monitor charging. If it drops lower I will put in a volt meter. If I run into other problems I will scrap the whole idea since I have the better updated wiring at the bulkhead anyway. I'm only running a 50 amp alt using no extra accessories as a draw except for a tach.