Someone took the connector off and placed the wires into positions F & H.
I did something similar except with jumper wires.
The reason I did it was that my 67 has a '78 727 so could use the combined neutral/back up switch when the disposable column pin for the column back up switch broke.
Looking at your firewall connector, there are two wires through small individual grommets in the sheetmetal. Those are not factory grommet locations so there have been some other modifications. My point is somebody made the change after the car was purchased. if it was you, maybe you have the connector someplace.