Please help! I have a newly built 383 installed by a local "Hi Performance" engine shop and I have taken it back 3 times for leaks around the valve cover breather grommet!!! They tried 2 different types of breathers as well but no luck. They even had the nerve to tell me that it is normal to "seep" oil from that area. I don't believe that! I have a PCV valve on the passenger side as well. The driver's side had a K & N open faced type breather (the kind where you see the filter/mesh). That leaked around the grommet. Then they tried another of the same type. That didn't work. Then they tried a traditional solid breather (not a cap). That leaked around the grommet as well. I even tried putting a cap (non-breather) in the driver's side valve cover. That was a mistake as it didn't allow enough pressure to escape and blew out the valve cover gasket on the passenger side! They now say that it is ready for pick up but to expect seepage!!! They put in another breather but added another hose similar to the one attached to the PCV on the opposite side. Is this normal or can you explain to me what is causing this?