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Carb spacers, which to use
The carb linkage on the rear 4779 Holley hits the carb adapter on our 6-71 blower setup on a BBC. We will have to use a spacer of at least 1/4" but will probably use a 1/2" spacer.
My question is is there any advantages to using a open spacer or a 4-hole spacer?
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