My neighbour bought a 750ex last week, he got it bored over night to an 810, then he straped a pro 250bigshot nos tank, air filter, pipe, drag bars ect.. and he dyoned it at 67.8 hp without the nos, and it gps'd at 98mph, and with the nos it gps'd at 137 mph but it was still accellerating! NO JOKE!

 

Seriosly, the 400EX has enough power for you, Micky. But then again, if you ask me you should be riding an LT50 with the throttle limiter left in, and put some big training wheels on it so you don't fall. Hey I hear mommy calling you, time for your bedtime story.