Ignition nightmare
distributor that has 1 wire is points. Does the reluctor look like a 8 pointed star or a octagon? Ie do you have points or a big honking brick in there? You can run points to a 5 pin ecu but its a gimick to prolong your points. If you have the point type distributor, ditch the ECU and run the 1 wire to the negative side of the coil and start from scratch. Electronic distributor has 2 wires in a single sheath (purple and green?) and needs an ignition box.