Just acquired a 1948 Ford 8N, that runs fine. Trying to restore it to as original as my pocketbook will allow. Therefore a little at a time. There was no cable coming off the back of governor, so then looked and learned it went to a tachometer/proofmeter on the dash. But there is no tach or 3 1/2" hole for the meter anywhere. Was there a different way it was installed ?