May sound simplistic but the 325/50 Kumhos on the rear of my '04 RC hook up real well. I don't quite dump the clutch and come out mid-rpm and they do not burn much and it is just enough to keep me from bogging in spite of the fact their taller diameter gears me the wrong way for launches. These taller tires and the '04's 4.10 make my first gear almost like my wife's 2nd gear in her '06 but I like doing 75 at only 1400 rpm.