I have what sounds like the valves are loose and rattly, almost knocking. not the typical timing rattle. I am trying to dial in a tune with my 4088r and the truck sounds horrible at WOT. I don't have the log with me but 120mm3 is 3267pw, 30deg timing. Rail pressure is still above 20k. hopefully some ideas for now and I will post up the log later tonight when I am home.
