I put a TKO-500 into my 67 Cougar and also did an EFI conversion. My TKO came with a VSS that does not have an input for a speedometer cable that is located on the passenger side. It also has a mechanical speedometer cable input which my cable is plugged into. I also plugged my VSS connector from my Ron Francis harness into the passenger side VSS. How should my set up be? Do I just get the correct gear to make my speedometer read correct and stop bouncing around and get the correct gear for the VSS so my ECM reads correct?