OK let me start off by saying this problem is a friend of mine. He has a 96 V6 Camaro and there is a pretty good stumble & constant missfire above 3000 RPM.
He had it scanned and they said it was a missfire on #6 cylinder, I told him to replace the plugs and wires, and he said it did not fix the problem. So then I told him to replace the coil pack. problem still there, I told him I will test the fuel pressure tomorrow. So my question is what pressure should I see and is there anything else I should check? Thanks