First Day at the track

Dont change your shocks,there fine. You need to try different settings but they will work. I dont think your launching at a high enough RPM. 1200,1400 OR 1600 isnt enough in my opinion. 2200-2500RPM would be more like it because you dont have enough gear in it to launch it. If you had 4.30's or 4.56's then 1600-1800 may be ok but you dont have those gears.

Any pics or vids of your duster???