[Uncle]

I've got a 3ltr SC motor with turbo lower covers on it. My drivers side has a persistent oil drip/weep on a 6 of the studs, Oil makes it's was down between the thread of the studs and the nut then drips on to the exhaust.
So far I've replaced the rocker cover as I thought it might be just warped enough to be placing more load on some studs than others. After this didn't fix it I replaced the paper gaskets with silicon ones from our host along with new nuts and crush washers. I torqued them down to the factory spec but they still leaked as much as they ever have. After this I packed the sh!&'s and torqued them up to a crazy 13nm. I know right, I am a wild man!
Anyway this also made no difference after a drive of 30 minutes and getting the oil up to temp they all still had a drip of oil sitting at the end of the thread.

For the record the seal around the edge of the cover is fine with no leaks at all.
Its a problem I don't want to put up with as I'm 99.% of the way though converting to turbo/efi and its the same side as the wastegate. Wastegate flames and heavy oil vapour sounds like a bad idea to me..

Thoughts?