HelloCustomer what specifically are you trying to find on this Monte?
Your JA Expert,
Sorry about the delay, I was uploading the info and the internet when down for me. I've got an 87 Monte SS, so I know what your harness looks like. This is what I want you to do first, before i load you up with info. Lay the harness out on top of the engine. It primarily runs on the passenger side. Everything should line up with where it belongs. Lay it out, see where things line up and let me know which ones you are having a problem with. I'll help you find those and not overwhelm you with a ton of info that you may not need. Do this and let me know how you make out and I'll jump in to help.