I have a 72 Dart with a 318 engine with electronic ignition. the wiring in the engine bay is crap, it's been cut and spliced and the wires are all cracked. I saw this on yearone.com
http://www.yearone.com/serverfiles/fbshopmain2.asp?hid=112AY9945
it's for a 70 A body with electonic ignition...