The best 60' times I have been able to get were after a pretty substantial burnout to get the KDW's nice and sticky. I guess it depends on the type of tires.
I launch at 3000 with a tiny bit of clutch slip.
Last time I was at the track I was getting consistent 2.3 60' times, but everyone was saying the track was slick that night. My best is a 2.20.