Quote:
Originally Posted by PeteF
A third option (what I did) is to remove the vac advance and run 10 initial + 24 mechanical only. Mid 60s high performance Fords ran centrifugal only/no vacuum. You give up 2-3 MPG, but have a simpler, straightforward advance mechanism where you get advance proportional to rpm only.
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That will work BUT you lose throttle response and the benefits of a cooler running engine. Early Corvettes had mechanical advance only on their high-performance motors. Every one I converted to a vacuum advance dist. ran cooler, had better throttle response and got much better gas mileage all with no loss of performance. GM realized this and changed to vacuum advance on all their engines in 1963.
Jim