Those solenoids have one of the big studs longer than the other. And I do believe that is the one that the "+" or hot goes to. I have a factory manual at home, 70-78, that I can reference for you if you wish tonight. Let me know.
Also, shovelheadusa.com usually has that info.
Posted on May 20, 2011, 1:17 PM from IP address 18.104.22.168