Luke Groundrunner

i wanted to mod my runner with a k&n fuel intake performance kit, but i was reading on another thread that the k&n filters were made for the track and let too much dust through. Now i want to know if the other intake systems are better, or if i could possibly put another filter on the k&n kit or if i should just go with another intake like the one from revco.
thanks

ByThaBay

read this: http://www.bobistheoilguy.com/airfilter/airtest1.htm

" This means that there is very little if any power to be found from removing the air filter, much less changing the filter type. The K&N did flow better than the Napa Gold in the first test to the tune of 0.02 psi. That is less than 1/3rd the loss in the factory piping, and it is a whopping 0.14% of atmospheric pressure (14.7 psi). If you need the 0.14% better airflow, than the K&N is hands down the best filter."