I have what is believed to be a 3 wire GM alternator with the internal regulator. I bought it at a swap so now I need to confirm. It has the typical one large lead on the back of the alternator for the power and then a Field 1 and 2 next to each other on the perimeter of the housing. I tried to take some numbers off of it, so here's my best shot at it. The numbers are in two rows, the top row is 1 102913 61 ? and the bottom row is SK 1--12v NED. I'd like to confirm that its a 3 wire and the amount of amps it will generate. Thank you for your assistance.