I put about 5,ooo miles or so on my 383 and always had a oil pushing out the breather and trying to leak around the ends of the intake. I'm running an old set of MT valve covers that had no hole for a pcv. After pushing a valve cover gasket out a few weeks back I drilled the v/c for a pcv. END OF PROBLEMS! I never ran one before on aftermarket v/c's but from now on I'm not running without one.

Yeh Mike...I know if I would've listened to you....