Oh dont get me wrong, they can me made to run great. a friend of ours has a trailblazer that is dune ported and a pipe and it has beat 400ex's pretty easily. IT IS STILL A POLARIS though. I'm not a big fan of the polaris but with the right amount of work they are alright.
__________________ Passion Racing blaster
LA sleeve 240 cylinder
Vito's +3mm crank
39mm Keihin PWK Shearer custom built pipe for this motor to Jim's specs
shaved and rechambered head with 4 angle design
cases moddified to run banshee TZ bearings
custom billet intake
custom billet flange
custom H2 Piston
K&N airfilter
PE billet clutch basket
RDZ HD clutch springs
PVL ignition
WCR 1-5 duneable override
+4 swingarm
LSR Honda style hub  
1989 Suzuki LT250R
ported cylinder
FMF gold series
Keihin 38mm PJ
boyseen rad valve
reed spacer
K&N clamp on
lightened flywheel
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