my 528 is noisy more so when hot it's a flat tappet. Do you guy's think it's time to set the lash already? it only has around 500 mi on it since it came off the dyno. Barton used the tool steel lifters with a bullet solid cam. I did not get my cam card but the dyno sheet says 280 cam. I think the gross lift is around .667"intake and similar on the exhaust. the dyno sheet says lash set to .20 but that is crossed off and .10 is wrote on for both intake and exhaust lash. this sounds very tight can I hurt anything running the lash this tight? The engine has an iron block aluminum heads and roller rockers.