Was disappointed to see that there's some smoking behind the driver's side valve cover once again at high revs. It's been about 2 years and 10k miles put on the car since I did the associated valve cover gaskets, cct seals etc. Also, changed the 2 breather hoses on top. Is there something I missed? I remember determining after some reading around that there was no additional breather hose behind the motor but now I'm wondering if I was wrong. I suppose it's also possible I messed up on the one of the seals. Any guidance? Thanks.