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Old 01-08-2014, 10:29 PM   #9
Broke Pilot
 
Drives: '14 1SS 1LE,'68 Chevelle,'70 Vette
Join Date: Jan 2014
Location: Conroe/Sugarland, TX
Posts: 227
Quote:
Originally Posted by Nightmare2012 View Post
What does aux vacuum pump do? Sorry for the noob question
When your cam gets that lumpy the motor can't make enough vacuum on its own for accessories like power brakes etc. the aux pump makes up for it.
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