I have a 2007 3500 6.7l cummins that I've put an edge and done a full dpf delete. I'm very happy with the truck in general only issue I'm having is when I accelerate hard I can feel the power band and if I give it a little more gas than the pull of the acceleration I get what sounds like rocker rattle. I've been reading about fuel issues and possibility that the engine might want a bit more fuel than the stock UP pump can handle. Also have read that the edge might be giving it a little more advance than needed sense the egr and dpf are gone. Any input or help would be greatly appreciated. I've also done a 6 inch lift and have 37s on if that could be an issue. Thanks again

 

You need to put this in the Cummins forum. This is all gasser talk.