Working on electronic ignition conversion for HP273 dual point distributors

You unscrew the points and condenser from the breaker plate and pull the wiring from the housing All the old parts stay together. The pickup screws to existing holes in the breaker plate and the magnet snaps over the cam. Pop on the rotor and cap. The wiring is simple. On my kit, one wire went to the - side of the coil and the other went to the switch wire (12v. in) at the ballast resistor. Dang, I should have taken photos.