Hi guys, we have had a recurring issue on a few cylinder with rocker jam nut backing off. Harland Sharp rockers on EZ heads, solid roller valvetrain. We are trying to investigate and solve the issue. My plan is the check the lifters and pushrod wear and clearance. My dad thought he solved the issue before he passed away 2yrs back and we are just now getting the engine back in the car for initial startup only to run across this issue again. I would love to hear any feedback you guys might have to help solve the issue. We just want to get it fixed right so we don't have to keep worrying about it everytime we run the car. Thanks