Best xr600 perf. parts???

[ATC600X]

i dont know if yall really know but what would be the best companies for xr600 performance parts, i dont need exhaust, because im gonna make a yoshimura work,but im makin a 350x with a xr600 motor in it and want to modify the motor a bit.i have no clue on dirtbike companies

[SwampThing]

i know what you are going though.i am building a 400ex with a xr600 engine.the guy you want to talk too is Rob Barnums he the xr guru his # is (760)868-8097 his web site is www.barumspro.com .his site is ok but you should call him he is a great guy to deal with.there is also XR's Only their # is (760)244-1148 and their site is www.xrsonly.com .they have a great site with alot of good info.by the way Rob use to work for them and was the number one man when he was there.you can get big bore kits,cams,vavles,springs,you name it they got it.oh yea by the way when i strarted to mod my 600 i gave Mickey @ FST a call and he told me to call XR's Only.that should tell you how good they are.

[ATC600X]

cool man,thanks