How many amps to relay? Anyone Know?

Frankly, WJ, the fuse link was never "much." A TRUE story

Not long after I bought my 70 sixpack RR, some girl a-holed it, I ended up with a junker /6 Valiant "loaner."

One morning (it DOES get cold in San Diego once in awhile, ice!!! on the mud puddles!!!) the Leading Chief came into the shop and asked (imagine Detective Columbo, eyebrows knitted, terrible look on his face)

"Say, are those loaner cars supposed to squeal and smoke like that?"

So I go out an yup, the alternator is stopped, the oily, loose, worn-out belt smoking and squealing around and around. I shut it down, took a rag and removed the belt, and tried to turn the alternator

IT TURNS OUT that a diode had fallen out down inside, with the wire!! still!! attached!!

When I moved the pulley, the diode shorted (main charging wire) and I watched as the entire underhood harness turned itself into a smouldering, melted, hot gooey mass of plastic and copper, and AFTER it had done that, "phfssszzssstttt" the fuse link blew!!!!