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Old 08-10-2015, 05:06 PM   #3
Bigdav160
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Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
Re: Getting rid of air cleaner riser

The PCV is pulling in crankcase vapors to burn them and that device is allowing clean filtered air to replace them.

You can eliminate it but it's still best to run a filter on that valve cover
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