Needs some opinions. I just got my 355 together put on test stand to run it. It's comp xe 268 cam hydraulic. Would not stay running stoped to see what was up. Stupid me forgot put plug in intake were 3/8 line goes for brakes. Fired it up went thru procedure of breaking in new cam. The rockers towards end started rattle little bit. Today pulled valve covers off their were 7 rockers loose [no metal in oil]. Readjusted all rockers while running. It was quiet , smooth run fine left it run little bit to see if start making noise , everything was fine. I took every precaution including comp oil additive. Question is is cam on it's way out.