So there are 4 wires One is a ground it is grounded. Then there is one bigger one and two smaller ones a green and blue. So if I understand you correctly Hook the big one up to the battery, ground the green and hook up the blue to the output of the regulator. I do not have a regulator yet but if this is correct I will go buy one this weekend.
This is what I looked up for 1980 regulator. There appear to be 4 terminals I am guessing there is a voltage input the field wire and maybe a ground? Does anyone have a pic of what they did. I am trying to figure this out but have always been a chevy man and just dealt with there super simple alternators. So this is a new challenge for me