i raced super one in the late 80's and early 90's and competed in the last 3 british endurance kart championships(when they were 2 stroke), i also did cadet instruction and ran my own karting company GPR Karting, gave it all up last back end of last year and bought a cossie, as my knees, back and kneck can no longer take the kind of punishment karting gives you!!!!
pugo