Need Small Block with A/C Pics, Wiring Diagram

Which wires are which on the field terminals don't matter electrically, but you DO need a green and blue. Can you find green anywhere? I could not have gone too far LOL.

Is it possible someone did some wiring repair?

To find the green at the alternator end, disconnect the battery to isolate all other circuits, disconnect the regulator plug, and connect one end of your continuity checker into the green wire at the connector. That only goes one place on one wire -- to the alternator on the green wire.

If yours has an electric choke or distributor retard solenoid or a couple of other smog doo dads, someone may have gotten the green switched

I don't have a '75, only 74 on paper, but you can get a "sort of" diagram at "My Mopar"

http://www.mymopar.com/downloads/1975/75DartA.jpg

http://www.mymopar.com/downloads/1975/75DartB.jpg