extra power

[Honda TRX250ex]

how much extra power would you get out of a this

426ex
-JE piston
-Hot cam 2
-Port and polished
-Over sized vavles

[lafinrat]

Depends on who does your head. If done right, I'd say those mods could be worth ~30% increase. If you just slap a piston and cam and have someone clean up the head, you may only see a few hp.

[Honda TRX250ex]

whos the best place to do a port and polish and how much would it cost?

[400EX QUADER]

I would say to pm mike boone on here... he does some great stuff.