Finally put the fresh gasket and seals on the valve cover, and set the tappet clearances (which were way off) a week ago. Once all the oil was cleaned from the area I could see if the oil seepage continued, and it did. Unfortunately it did not only continue to seep from the valve cover, but oil seems to be bubbling up from the head bolts as well (even after being re-torqued). All the breather’s are cleaned out, but there seems to be pressure building up somewhere, enough to force oil and air up through the head bolts. Anyone have any ideas?