all honesty buddy,i havent got a chance to run on carpet with my cyclone yet.the 2.5 block seems to be good for asphalt racing.this will give you 2.5 degrees of front arm sweep.it seems to give a little more steering and hold the line better.0 degree arm sweep is ideal for carpet.the only problem you will run into is the it will make the car more narrow in the front.you will need to widen the car by shimming the rims about 1-1.5mm per side.run the 4mm shims under the ball studs on the steering rack and dont run front toe out.run it at 0 degrees.i will be able to be a bigger help after august 5th.i will be testing my new cyclone carpet chassis kit.i will post a good set up when i get it figured out.i am going to start with the setup that jagg88 sent me.