anybody have a pic. or Manuel showing how the top end gets its oil ?(56 235 chevy) I did not do the tear down and maybe missing parts. there is a oil tube from the rocker arm shaft to the head, a oil pass around the head bolt to a 1/8 pipe port but no access to that I thought it feed up the bolt from the block but with a bore scope that is a no go maybe a jumper line from a 1/8 threaded hole just above the lifters ? but then hows it get out from behind the cover ?