Hey Bob, I was told you are the man to talk to about smarty tuners. I have a TNT for my 05 cummins. I had the intake milled off and put on a ZZ Custom manifold, I had Mountain High Performance deck the head, install their bigger valves and 120lb valve springs, O-ring the head, and I put on a 24valve head gasket which is .010" thicker than the common rail head gasket. I also have a SuperB Special and I am trying to figure out what I need to do with my timing since the head gasket is thicker.