After my tune I have a similiar but slightly different situation. The car screams through 1 & 2, but seems to bog down after the shift to 3. The A/F mixture graph is good through out the rpm range. To me it feels like shes running rich for some reason once she gets to 3. I'm still learning to find the "sweet spot" when hitting 3. If I hit it right, whoa, hang on triple digits come up quick. Hoping the DR Cobra exhaust I have on order will help.
2004 DTR Marauder, Built 26 February 2004, Inservice: 02 July 2004 Retired from DD 17 July 2008. Survived the cut, 28 April 2012. Back as a DD as of 18 November 2012.