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#11 (permalink)

06-12-2008, 10:46 AM

c6ae

CC Member

Join Date: Sep 2003

Cobra Make, Engine: ERA - 427

Posts: 56

Not Ranked

ERA car, stock 428 CJ w/750 Holley got 11-mpg w/mechanical dist.
I switched to a vacuum advance distributor; no other changes and now 14-mpg

The vacuum dist is stock Ford with Pertronix, curved to factory specs for a 4V 390.
Of course if I want to I can get about 6-mpg…

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