1970 Dart 318

I was thinking about doing this also. If I'm thinking correctly, connect your starter, starter relay and battery wires. Then you'll need to jump power on the starter relay. Should probably run power to the wire that comes to it from the IGN switch, then if you jump the two wires that run to the starter (temporarily, with a switch, etc - one wire is constant + from the battery and the other is the "crank" signal) that should start the car. Somebody correct me if I'm wrong! Double check this yourself, don't take my word for it, I'm going off the top of my head.