Well what a pain this has become, I changed out my lifters to S&S premium lifters after the fueling ones failed, and guess what this god damn noise is back but to a lesser degree. On cold start up she clacks a little from the front cylinder it sounds like, and also after shes hot and you shut her down for about 45 minutes, I have checked the compensator 2 sets of lifters what the hell is left, the rockers I imagine? even had the pushrods checked when the lifters were replaced, the sound did get a lot better but I am wondering if the bad lifter damaged a rocker? I need help I am freakin pissed .Factory lifters took a dump at 11k then the feuling lasted about 2k, now I know its not my new S&S lifters,whatever work was done def made it quieter but I know its not valve train noise cause after a minute the oil starts flowing u cant really hear it except sometimes on accel I think, IM at the end of my rope, help! any thoughts?