I had a long baffle welded below the vacuum pickup fitting after having the same issues on my new motor this year I had to tie rap a rag around it at the races once this year to stop the dripping The old motor with a different valve cover set up never had any oil drip out of the breather, never I use one vacuum line to the valve cover per GZ instruction with the relief valve beside it also
My motors barely have any vacuum at idle and only 5 to 6 inches revved up so the pump will go back for rebuilding this winter, I would like to see 10 to 15 inches revved up