wiring a voltage regulator

I have a really bad problem with the alternator it putting out 18-20V on idle which the voltage regulator should regulate. The battery is fully charged and does not running anything that demands any electricity. I have drawn the cable as the 73 Dart wiring diagram. But I read what 73AbodEE said and the field should not be connected with the coil which the 73 wiring diagram shows you should. I have drawn the cables like the 73 wiring diagram in the picture. I connected like 73AbodEE showed in his chart but the car didn't start then. Have tried everything please give me some input how I can go from here. Is a Dart 73, 318 with electronic igniton. Thanks