Looked at it a bit more tonight after I torqued the head and installed the rocker arm assembly. The oil return line on the rocker assembly is crimped at the top of the arch and a hole added on the bottom side of the line. Gonna take a guess that the return line was crimped and the hole drilled to add more oil to the rocker area. Thought I read somewhere that the 235 had some issues with not enough oil to the rockers but I could be wrong.
