It seems the Pontiac 400 engines are sensitive to CC Pressure, and a good PCV system is a must. It only get's worse with Engine Mods and more HP. No pretty little Breather Caps will work either. I got tired of the drip mess so I replaced the rope seal with a Viton one, and installed a Butler Evac Pump. That's damn expensive, but any leaks are gone forever.
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