I am new to the forums so I have no idea how this shit works. But anyways I have a 2006 lbz duramax with brand new gm motor 13k miles air dog 4g 165 pump cp3 sportsman pump Danville tunes built trans stock turbo so I had a injector mounting bolt come loose before and made a horrible knock and found it and torqued it and was good to go now I have an odd sound under heavy throttle that honestly sounds like injector know but I can hear the injector chatter (cause of such a big tune) and this sounds a little different and it's only under very heavy throttle I did notice my boost gauge fluctuating up and down I'm kinda confused here it's not my y bridge my boots are all tight balance rates on injectors are all good in park and drive (#2 injector is higher then others but still within range they should be) please give me any opinions or ideas thanks.