Thats from a 216 (and, correct me if I'm wrong, an early splash oiled 235). ...and the oil flow goes the other direction, at least on a 216. It comes up from the line thru the block, empties into the trough and feeds via gravity back down to the pushrods, lifters, cam and finally the pan.
http://farm7.staticflickr.com/6177/6185550768_3fa01e9c95_o.jpg
