Distributor Phasing Question

bohica2xo
Thanks for the excellent description. That is the way I figured it must work, by splitting the difference. One must be smart to set it up correctly, such as use a distributor cap with a cut-out to view the rotor with a timing light (I have done).

The reason I am thinking about this is that I plan to eventually use an 8-pin HEI module (GM 87-95), which allows electronic advance, controlled by a Holley Commander 950. I am contemplating keeping the mechanical weights for optimal phasing and just add to it electronically. If the weights don't stick much they ought to be smooth and predictable, and leaving the weights in makes it simple to swap back to standard mode.