I need help finding the wire that goes to the pin on the manifold near distributor...

If it's got an open sided slip on terminal end, it's the only thing it can be for. Coil are both rings, ballast and others are female spade plugs.

Mine was sort of modified by the last guy that had the car. The open sided slip-on terminal end fell off and I don't know what the connector that it fell off of looked like. So I have a red wire with a female spade that may have held the slip on terminal on it. That's why I need help. I need to know where the wire is coming from and what color it is and possibly some pics. The Haynes is of no use.