mine really isnt setup for either lol. a 4.10 is way too much with my kb lol i struggle for traction on the street even with teh 315s out back. lol its just my street car and the only reason why i do 1/8th is beause its about 20 minutes from me lol i want to hit mir this year.
but yea your right its how the car is setup. kbs dont do so well on the top end like the centris.