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The noise I was talking about, I think I have it narrowed down, it sounds like an exhaust leak, and when I crawled under the truck, the DP is HORRIBLY off center, like I can see a gap between the DP and the upper fl;ange, and the clamp is nowhere neat centered, so I am gonna wait till it cools, re-position it, and see if the nboise goes away. There can be NO way this thing runs as fast as it does and only be on 7 cylinders, we have a speed limit sign we checkour vehicles against, my old F250 chipped and downpiped and raised fuel pressure was hitting low 60s, this truck hits 65 and that's with slow shifting. I will post a follow up as to whether or not that cures the "miss" noise.