i have 235's, and it is definatly slower than the weenie stock tires, so i can only imagine how long it must take you guys with the bigger tires to get up to 55....i know a tracker isnt a sports car, but geez....could definatly use a couple more squirrels under the hood....and i even have a fresh re-ringed and bearing'd motor with a cold air intake, fresh tune up, no cat, and 2" pipes....not too much pep after 45...maybe i need some gears??