I was installing the valve train on my 1915cc today and ran into a situation that I am unsure of. My engine has a stock stroke crankshaft with over size bore for the larger displacement. I have used a .177 shim under the cylinders to get the correct compression ratio. I installed the push rods and rocker shaft assembly and adjusted the valves. At full lift the rocker is not quite level compared with the valve cover surface. When the valves are closed the rocker is on quite an angle and I am nut sure if that is within normal. The rockers have adjustable swivel balls with flat spots that push on the valve stem. According to the builders manual stock push rods (length wise) are usually used with this type of rocker. I guess I am just nervous about the rocker angle and wonder if this is within an acceptable range. The push rods I am using are 5/16 diameter and 11.06 length.