Model B timing

[ursus]

I checked some unused NOS plates and came up with 0.48 inches spanning the 8 notches for 2.07 distributor degrees so thanks for your prompt on this method. I wonder if Ford ever published this sort of detail in any Service Bulletin.

I recall my Dad's 1929 Chev had a centrifugal distributor and that CM must have dealt with the limited advance range of the device with a pull-out knob on the dash that retarded the spark for starting the engine upon which the driver had to push in the knob to advance the timing for running.