[cummins600isbe]

I have a knock that will not go away, ive tried everything i could think of. it is not timing rattle as i know what that sounds like. I have sent my injectors back to don and nothing was with them. i have taken all of my boxes and downloaders off and it still knocks. i have adjusted my valves and it still knocks. when idling there is no knock, it only knocks when im driving. i have tried a different relief valve and no luck, and also a new FCA and no luck. Its nothing with head gasket bc i sent an oil analysis in. where do i go next? thanks guys

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2008 F-350 6.4L King Ranch 4X4,SPARTAN TUNED.
2004.5 Cummins, 2500, 4X4, Full billet, FASS, TST, SMARTY, Flux sticks, cam, Di-Procol (Boost, Boost, EGT, Trans, Rail, Fuel, EOT, ECT), AFE, 5" pipe, and more (893 on fuel )