I guess that you are using a ford duraspark box right?
The duraspark box has two plugs,
One with two wires (Red & White)
The other one has four wires (Purple,Orange,Green & Black)
Plug one with the two wires. Red goes to a key hot and the white one goes to the " i " terminal of the starter soleniod which should be one of the small terminals. If you soleniod does not have two small ones on it the hook it to the same side of the soleniod as the starter is hooked to.
The four wire plug goes like this.
The Purple, Orange & Black wires should run to the three wires coming from the dizzy, color for color and the Green wire goes to the Negitive side of the coil.
You should have a key hot to the positive side of the coil and it needs to stay hot while you are cranking the starter over.
This should make your ignition system work perfect for you.