Can you identify this???
I can't see well enough in your photo Here's a simplified diagram of the 4 pin ballast setup:
Bear in mind that the notched end of the ballast is important, as it identifies one side from the other which are different
came from this site:
http://www.mymopar.com/index.php?pid=31
In the drawing, the wire going off top right labeled "existing wire" is your IGN run or "IGN 1" wire, older cars were dark blue, yours still might be. Not shown in this simplified diagram is the brown coming from the bulkhead connector, goes to the resistor -- same terminal as goes to coil+ This is your "coil bypass" circuit, also known as "IGN 2"
Some useable diagrams from the same site:
http://www.mymopar.com/downloads/1975/75DartA.jpg
http://www.mymopar.com/downloads/1975/75DartB.jpg
I can't see well enough in your photo Here's a simplified diagram of the 4 pin ballast setup:
Bear in mind that the notched end of the ballast is important, as it identifies one side from the other which are different
came from this site:
http://www.mymopar.com/index.php?pid=31
In the drawing, the wire going off top right labeled "existing wire" is your IGN run or "IGN 1" wire, older cars were dark blue, yours still might be. Not shown in this simplified diagram is the brown coming from the bulkhead connector, goes to the resistor -- same terminal as goes to coil+ This is your "coil bypass" circuit, also known as "IGN 2"
Some useable diagrams from the same site:
http://www.mymopar.com/downloads/1975/75DartA.jpg
http://www.mymopar.com/downloads/1975/75DartB.jpg