[Roadsters] oil coming out at base of spark plug U20

[chalsted]

nope. not dripping down from the valve cover gasket. I wiped everything dry 
after I first saw oil coming down from that area and then fired it up again 
and looked with a light and my glasses on- it's welling out from around the 
base of the spark plug. have a feeling I won't be finding out the answer 
without pulling the head :-(  have another low mileage rebuilt U20 sitting 
in the shop that I heard run within the last couple months before I pulled 
it (terminal chassis rust car) and I'm tempted to just swap it into the car 
and deal with whatever the problem is with this engine later on... quickest 
way to driving the car :-)

Craig