OOh i agree paintball the kfx and z are better all around but there not that much more powerfull were they shin is the ride they give nice and plush and they both are really stable on hillz but as i said on bottom theres just not that much more juice but the other good thing about them is the respond to mods such as pipes cams etc; much better than the 350 due to the extra valves but as i said im content untill i either do the 400 or 450 upgrade or just get the 660 [img]i/expressions/face-icon-small-happy.gif[/img]

 

My boy has had is for a year now with zero problems now he is looking for more power we piped and jetted to get a little more out of it.
My brother has the dvx 400 and my nefew had the z400,Ill tell ya that they have a ton more power for the extra 50 cc.
On the trails the 350 can keep up with them but on the straight away the 400s walk away

 

the first thing you should do is put better tires on..the stock '05 raptor tires alone gave it about 4 lengths in a dragrace over the stock tires