Maybe time to look at your crankcase ventilation setup for some improvements also, for the new extra blow-by volume that is now being created by the boost. There's obviously pressure accumulating in there.
I have a catch can, but I think the baffles in the valve covers are basically touching the valve cover insert. Making it non functional. I was worried about it before the track day. When the seal is fixed I'm going to remove the baffling.
