Hi. I am friends with Jim Moffet (Pontiac Jim) who is permanently banned here. However, he still cruises the site and wanted me to let you know that he has wiring diagrams and specs for your 31. He and I are over on the Pontiac GTO Forum. My handle over there is geeteeohguy and his is Pontiac Jim. You can read my messages and see the manual, etc. if you want.