Thread: vaccum leak
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Old 06-29-2008, 05:15 PM   #9
slammed70gmc
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Join Date: Jan 2008
Location: Knox, TN
Posts: 14
Re: vaccum leak
well they are both for sure square bores. it does have a carb spacer though.
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1970 GMC 4/6 drop
built 350 with double humps, autometer phantom gauges. WORK IN PROGRESS.
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