no offence gasx4, but you bought a 13 year old bike and you want to tune it for racing?
Is this your 1st bike or have you been doing this for a while. if your racing your buddies,there are lots of small things that don't cost to much that will help a lot, but if your going to try and get some race series trophy's, you'll need a newer bike by a long stretch.
- jet the carb to your liking
- change out your suspension oil and get the right springs for your weight
- set your suspension clickers and your "RACE" sag for your weight as well.
-faster ignition curve (as previously explained how to do) with stator and cdi swap will make the bike rev faster, but you will have to be honest with you self (timing yourself through a preset loop is the best way) you may actually be slower covering the same distance than you are with the stock GG setup.
Hooking up and moving forward is actually way quicker than spinning tires,roosting dirt and backing off to let the frt end come back down so you can steer into or around the next obstacle.
-Go over your bike and check/change/lube every bearing and linkage point to make sure they are in top notch condition, will help your bike preform to the best of it;s abilities.
the best suspension that you can afford or build is in my experience,way "faster" for most guys than any high compression head, or high revving pipe with a short ass noisey muffler on the back.