oversized valves

would oversized valves be worth the money to put in a 450 or is the air box not big enough to supply it with enough air to get a big boost of power

If you want to know all there is to know about building a Yamaha motor talk to this guy. www.dasaracing.com

If that doesn't work this one will www.teamracersedge.com

He mainly does quads but he said somewhere that he does things for the Yamaha Lites SX team.

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