What kart? Seat style and location is definitely priority #1 when dealing with a larger driver. While you see many successful tall drivers in classes like tag, they all have something in common. They are skinny and don’t have much muscle mass. Even at 6′ plus they are 170# max and a lot of that weight is long legs. They essentially mount their seat in the same position as a 5’8″ 150 driver. What I’m getting at is basically very few think outside of the box in regards to seat mounting. Because of my size you won’t ever see me in a standard seat mounted mounted in the same way as you typically see.