The other thing is that my alternator was fitted with the smallest pulley that the custom builder had. He said that at idle, this alternator output would be about 70 amps.
I don't know if you can put a smaller pulley on your alternator or not.
I also added a heavier supply cable from the alternator over to the main fuse/relay box. After these changes, I don't see any voltage drop.
Hope this helps.
Everet


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