No Spark help
This is actually where I got my diagrams from, such an great resource.
Just be careful if yoiu're looking at the wiring diagrams they have posted. They've been ripped from Haynes or Chiltons or something. The ones in the FSMs are much more accurate. Occassionally you'll find mistakes or confusion in them as well, but once you figure out the system they're the best.
A is usually battery circuit.
R is usually Alternator (output) feed.
J is Ignition (which also feeds the alternator field and other key systems)
Each wire gets its own number, or number and letter depending if its a subcircuit or just a segment between connectors.
Last is wire size and color.
The '73 (and prob '74) Dodge diagrams have the connectors labeled C___ and pages with a key for each connector.
When figuring out the wiring its super helpful to highlight or redraw just the circuits you're interested in. (For some years, its almost the only way because the diagrams have to be pieced together.) Old school way for techs was to trace. I generally prefer to draw what is needed on paper. Copying that way makes it stick better in my head. But sometimes it means doing it over a few times. If its already scanned in, then reworking a screenshot in IRFAN or MS-paint is another option - the one I use most when on-line.
