408 wont run

Take your volt meter out and find the wire that has 12 volts when the key is in run, then trace the wire that comes from coil positive and couple them together. I'm more familiar with the 2 post ballast as well but if you look at the wiring diagram for your car it should be cut and dried. Start feeds 12 volts to the coil and run goes through the ballast . Check out the wiring diagrams