So my 70050 came in today, is there a trick in getting these plugs to work on my stock truck injectors. ...doesn't seem like they wanna clip....also i only have four fuel injection plugs...are the other for on a separate harness that summit forgot to pack? I called summit and the girl said they would ship the other four plugs (harness) is there a separate harness for the other half of the motor and does it plug in....im not cutting this harness, i will send it back and have the ship me another