well i'm thinking about going faster!! now that the knew 450's are coming out , i really don't feel like getting smoked. i know i could sell mine but i turned down the yfz and 450r last year to buy my kfx. i do alot of trail riding and the other 2 didn't feel right to me. i wanted a good trail bike, something i could ride all day. well alot of my friends drag race and well , we all love to go fast!!!! ive told my self i was going to stay out of the motor - but my head says one thing and my right thumb[img]i/expressions/face-icon-small-smile.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img][img]i/expressions/face-icon-small-wink.gif[/img] says something diffrent. not sure if i want a old project shee to build up or open that damn motor. i still want something reliable!!!! if i had a drag shee and tore it up at least i'd have something to ride. thinking about 440 kit, are they reliable? nos- maybe.

 

the 440 kit and the 450 kit are very reliable as long as they're done right
I have a 440 in mine with lots of work done and the motor is very strong
and haven't had a problem with it yet and its been 2 years now
not sure about the nos

 

nos is very risky compared to not running it, its just like a car, it is safER if u run a lesser amount then a hard shot into the cylinder, but still risky.

 

do you know anybody spraying a z,kfz?

 

There are several people that spray, but don't go over a 20 shot, that should be your limit. For power without, go with these guys, I'm thinkin it will be my next purchase. Only thing is the 536cc kit is $2300 and has to be rebuilt annually with hard use.

http://tudorsperformance.com/tudors_new_004.htm