I'd be looking for a worn cam lobe/ follower roller for the source of your noise rather than a bad lash adjuster. I've put a few cams in because of this issue. It is also sometimes the source of a random misfire as well.

Last edited by 71yelladustr; 12/29/16 11:34 PM.
392 gen III hemi on E-85 727 trans Dana 60
10.02@134