I cracked open my distributor, and found the positive side on the internal coil. I traced the positive wire to the outside of the distributor. I then tested the unused plug(for the external coil) to find power with the key on. Connect those two wires, done. I used a flat electrical connector and shoved it into that harness plug. On the distributor side, I bared back the wire far enough to make a good connection without clipping the wire. That way, you still have the choice to use a coil later.
Have fun.