Heads are old rebuilt and appeared to have top shelf workmanship. I have no problem assembling/disassembling the intake, heads, whatever needs to be done. My only question after seeing your schematic is the rocker assemblies. I rebuilt them using spacers and shims from DSC Motorsports, but I did not notice a difference between right side and left. The
oil holes in the shafts are lined up properly with the rocker arms. The fit and function are fine. What it this 'notch' they mention?