questions about a few wires

What a web sight. I was going to ask the same questions. I pulled a /6 out of a 74 Duster and am putting a 318 in. My questions still left, after some of the answers I got from this thread is, what color are the alt. wires that spade into the back and there is a small wire for a small screw that probably goes to the alternator also. Great bit of help from you guys. Thanks.