rocker arm and push rod question

ok ,here is the deal, i have a concern with the postion of the push rods in my 340, they are all very close to the cyl. head casting , almost to the point of making contact, no where near the center of the hole in the heads. is this normal and just part of the geometry problems in these motors ? or maybe a casting shift ? next ?... what to do about it? again thanks for the help.