Distributor Vacuum Advance?
Venturi vacuum was used as the timing control on some Fords after the war. It's totally different system than the one used on our cars.
from 1959 page 10 (Session 136) of the Chrysler MTSC.
Illustrated here
from 1969 Ignition System Analysis (Session 259), Master Technician's Service Conference
No. This belief was being promoted by some guru a few years back.
Venturi vacuum was used as the timing control on some Fords after the war. It's totally different system than the one used on our cars.
from 1959 page 10 (Session 136) of the Chrysler MTSC.
Illustrated here
from 1969 Ignition System Analysis (Session 259), Master Technician's Service Conference
