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I have a stock 400 ex it has a k&N filter and a rev box what would would you guys recommend for starters for pilot ,main and where would you put the needle setting.All help would be helpful.
leave the piolet stock ....no need to change that with your mod's run a 152 main jet (sea level) and run the needle in the middle position(for starters) it should run great there ....good luck ......