With a 2wd the huge limiting factor is traction. Do you have an open diff or limited slip? If you're serious about it get a locker in the rear, and get traction bars. Airing down the tires will help, as will getting a wider tire out back like a 285/75 (32x11.5) or even a 305/70 (33x12.5)

If you have a stock clutch you'll eat it up quick with boosted launches. Might look into a Valair full ceramic or kevlar/ceramic clutch, or even a dual-disc if you want to upgrade a lot and keep racing for a long time.