So I got my hands on my first G Body. It’s a 85 El Camino SS (I believe). Anyways I bought the car from somebody who was planning on LS swapping it. I bought the car with no engine or transmission and front clip off. Missing the engine harness and the harness that hooks up to the Ecm. Only have the lights harness and the AC wires which I pulled out. I’m putting a carbed 355 SBC in it. So my question is what cars and what years can I use a harness off of?