170 MPH Go-Kart

Holy ****, you think your car is fast? Enjoy this 10 minute on board video from somewhere in Michigan. And I thought I had seen some crazy bikers. What engine is on this? It looks like he has a paddle shifter.

[ame="http://www.liveleak.com/view?i=a34_1333558237"]LiveLeak.com - Super fast go kart - up to 170MPH[/ame]