31" tall pro street tires.
what is the side wall label? size and model name? some of these Pro street tires are very hard rubber compound
(last forever but have no real traction) The Mickey/Thompson Sportsman *PRO*'s and ET Street tires work well.
The conventional Sportsman tires have no traction. (They are designed for show-street cruising and long tread life, not for going fast) Some of the others are just as bad or worse for traction.
you need to determine what you got and the true effective loaded diameter. measured loaded radius x2.
(measure from the ground to axle C/L with the car weight on the tire.)
What is the measured weight of the car, with you in it? (race weight)
What pistons are in this motor?
Last edited by F-BIRD'88; 12-05-2012 at 10:20 PM.