3 barrel holley info - The Supercar Registry

11-17-2013, 09:15 PM

VintageMusclecar VintageMusclecar is offline

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Re: 3 barrel holley info

That spring is for a mechanical secondary carb, there's no provisions to mount it on a vacuum secondary carb. Besides, if the carb is gear drive, the primary & secondary throttle shafts are 1-1 so there should be no need for a secondary return spring. The secondary shaft should close via the gear drive as the primary side closes.

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