New wiring harness problem. Need help!

[jcspaek009]

So I just rebuilt my 400sbc in my 72' c10 and also put in a new painless wiring kit, I fallowed the wiring instructions to a "T" also looking at the old (original) harness for a reference when needed. I put a new Alternator in as well, so I fired the truck up a couple days ago and it started and ran no problem until i tried to shut the truck off when the Alternator started to smoke a little and got very hot, the truck wouldn't shut off so I had to pull the coil wire to shut it down, I called painless and they said this does happen sometimes where the vehicle won't shut off and that I needed to install a diode on the excitor wire (white) to fix it, so I put the diode in and it still won't shut down and the same alternator smokes and gets very hot, also I don't have a ballast resistor and it didn't have one when I got the truck. Any help would be great cuz I'm loosing my mind and just want to drive the truck now that the snow is gone.
Thanx