Jose,
As soon as I switched to the GMPP aftermarket PONTIAC valve covers, my PCV valve began to leak real bad. I found that I needed to drill a new hole in the passenger side cover (in the back), and copy the factory routing. After that mod, the PCV returned to normal, and I also did the LS6 valley cover mod (just last year).
Off topic, who is the pretty young lady in your avatar?
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