My best 60' (2.20) came with the KDW's at normal operating pressure. Around 35 psi. The KDW's like a little burnout as well to get them nice and sticky wink laugh Not sure about the tires you've got. Just experiment a little and find out what works for you. Hope you break the 14's soon.

Speed kills, but it beats going slow!

Simon Langley
Black 98 SVT EO (#2119 of 6535)
269.3 FWHP, 195.4 TQ
14.123 @ 97.36
All go, and no show!
Vortech, Quaife, Driveshaft Shop Stage II axles, Magnecore Wires, Custom True Dual Exhaust.
CDW-27 1/4 Mile Registry