Something isn't right..

Again I was just hoping for an aha moment...
I remember on my car when I put the new heads on I had this clattering noise on the driver side and for the life of me I thought something had went terribly wrong. I checked through the rockers twice on that driver side and seen nothing and then the third time I pulled the valve cover off and looked and felt the rockers I finally found the number five exhaust was completely loose... Somehow it must have been jumping on and off of the lifter and I finally got that in order and thank goodness it didn't do any serious damage.. Ran perfect after that and has since. It was an aha moment...

You probably have some counterfeit Chineseium going on. One dyno session would have it sorted and you'd have more information other than it just running "good". J.Rob