Most likely, the valve cover is leaking. I can't think of any sort of oil passage between the block and the head that's anywhere near that side of the engine. Check to see if the bolt hole in the valve cover right above that area has a dimple in it that's not allowing the valve cover gasket to seal properly. They almost always get overtightened and distort the sheet metal, and oil leaks from ahead and behind the bolt hole since the gasket doesn't get compressed properly.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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