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Old 07-30-2010, 12:31 PM
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this is how i would ck for an internal vacuum leak back in my jeep days this was a very common problem on the 318 = 360.. remove and plug pcv remove and plug breather.. take a vacuum gage with the large adp install into pcv grommet in the valve cover.. start the eng bring up the idle a little and see if the gage pulls a vacuum.. if you have a vacuum than more than likely you intake gasket is leaking... anyone disagree would it work on a sbc....
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