AFB Electric choke help!?

You are correct. The easy way to do this is with a test light. Ground the test light to a nice bare metal part like the block and stab a host of wires on the fire wall to see what is live and dead. First check the wires with the key off. Then with the key in the run position.

At the rear of the passenger valve cover, there should be a connector for the engine wires. You can hook up the wire from one of these wires as well as test them by sticking the pointed end into the connector at this point.