thanks as always Andy.

So i have two rotors, one is model 7MZ the other is 3MZ. I have a regulator marked SH57:-12 on the back and 2 sets of TA21A carburetors. Are all these compatible with a PGM II (not the 7MZ i'm guessing)? is there anything else besides the wiring harness that needs to be compatible to make this all work?