I have an 89 Iroc 5.7 I have a new crate carb motor that I just put in. Everyone seems to say in regards to the harness you can rip it out and everything on the passenger side is not used. What is the small group of wires that are in a seperate loom and come from the battery area? Matter of fact they hook right in. Some of these I had to cut as they were tied into tpi sensors. Please help, Im trying to wire this thing up. Also do I have to rewire the fuel pump? Im using a fpr regulator with a return line setup. Thanks for your help!