Does anyone know how fast a 400 4x4 Scrambler goes top speed. A friend of mine just bought a Sportsman 400 and claims it will go over 60mph and that he'll spank me on my Scrambler. I have a Aaen top end pipe and silencer, Rad valve and reeds, k+n filter, the roller clutch, and the green primary and blue secondary springs. I haven't raced him yet, but I think I can beat him. Any input would be great!