What kind of tires do you have? What pressure are they at? And what rpm are you letting the clutch out at?
I only have the SE 2.5 and I am in the high 14's without my juice. I dropped my tire pressures to 26psi and let the clutch out at 1500rpm, much better than my previous 2500rpm launches! Saved over 3/10ths by doing that!
Fidanza flywheels help your engine rev up and down much quicker too. (as per previous post)

98 Contour SE 3.0L 5-speed SCT PRP, Gutted IMRC's, Fidanza Flywheel, Race Ported 2004 3.0L Oval Port, Zex 125hp shot, 70mm Mustang TB, 42Lb injectors,Walbro 255 pump, Traction Bars, Zeitronix wideband o2, lots of little things, 10,000K HID's!!