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Old 10-06-2014   #42
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,669
Default Re: Pulling the Plenum for the first time...

The LT-5 sucks so well at idle that it doesn't take much to have a vacuum leak.
How often does your secondary throttle vacuum pump come on w key ON?
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