Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - on older engine--should convert to PCV valve setup?
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Old 08-30-2010, 10:26 PM
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Why?

To controll crankcase pressure and keep the engine from throwing oil and fumes out of the breather caps. On a high mileage worn out engine, it might keep the stink of blowby out of your nose!
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