engine wiring help

Nope----------- Let's just take the brown and dark blue, and "pretend" you have a 2 terminal resistor, like the old points system

The DARK BLUE comes from the KEY, through the BULKHEAD, to one side of the BALLAST and is HOT ONLY in "run." It is NOT fused.

The DARK BLUE IS NOT hot in "start," so if you only hook up the blue, the car won't fire during "crank."

Mopar uses the "brown" to BYPASS the resistor during cranking so you get a good hot spark. IT NORMALLY comes from the KEY, through the BULKHEAD to the COIL+ side of the resistor. It is HOT in "start" and provides power to the ignition during cranking.

NOW that you are NOT using a resistor, you need to tie together at least FIVE wires:

The DARK BLUE "run" wire out of the bulkhead
BROWN bypass wire out of the bulkhead
Whatever (BLUE) feeds the REGULATOR IGN terminal
The BLUE going to one of the alternator FIELD terminals
AND the new wire feeding power to your new igniton.

Usable diagrams of the old system:


http://www.mymopar.com/downloads/1974/74ValiantA.jpg

http://www.mymopar.com/downloads/1974/74ValiantB.jpg