Can anyone help me with this. I have comp cams rollers tip rockers. Up to about a week ago I had the factory screw in rocker studs. One broke after 2000 miles on rebuild. I replaced them with Butler performance 7/16 screw in studs and new lock nuts. Installed. If I adjust now with engine running. At zero lash, quiet then half a turn. Engine is running awesome. Drive down the road and some of the rocker nuts are backing off. To the point tonight, 2 of the rockers were off the pushrod after 2 miles. Has anyone experienced this issue. Need help or suggestions.