I run 8.4's in 1/8 with stock rearend and suspension. Get tires to help lower your sixtyfoot then play with launch and shift rpm till you find right combination.
EDIT: Not sure if you have traction control if a newer car but make sure its turned off.
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My '00 GT
2000 GT Laser red-5speed,MAC Cold Air, MAC 2 1/2" Cat-Back, 3.27gears, Pro-5.0 shifter, Weld Draglite's 15x5 and 15x10, 275/50-15 DragT/A's, 165R15 front, BBK Underdrive pullies, BBK offroad X-pipe with Dynomax super converters
Best Quarter mile run to date: 13.296@101.99(9-9-01) Best MPH 102.42(9-9-01) Best 60' 1.844sec.
[This message has been edited by Ares (edited 11-03-2001).]