race veterans plz help!!!!!!!

thank you for all the replys..its the same carb i ran the 12.3 with....im gonna go with the spring kit first and then what next? what jets would u guys suggest i have read alot and tinckered with some carbs. i just wanted some good advicce from alot of ppl books arent on the track on the weekends like us pepole have better in fo then a book j...thats just me..so ill get he springs and im runnign the softes spring so im gonna hve to go stiffer and then see. also what size squriter should i go with im gonna test and tune in aug and i wqant to have all the right stuff on hand so we can make adjustments at the track.thanks again