Having a heck of a time working out the roller rocker tip movement across valve tip. The roller starts just short of center to the intake side and rolls out to the exhaust side too much. I need to go shorter on the push rod to get the roller to start more towards intake but any shorter and the rocker hits the stud nut! I need to find a rocker that has less lower mass so it can go lower on the stud. Maybe some comp cams steel will have more clearance at the bottom. Anyone else had this sort of trial and tribulation with roller rockers?