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HI..New to this site and I hope someone can help. :stop_nono: .I'm removing the stock air box on my 1990 Arctic Cat Prowler L\C 440 and
replacing it with 2 UNI 4 inch Air filters which mount onto the VM34 Carbs..The Stock Main Jet is 240..Would anyone know the
proper main jet I would need to make this Mod run good and anything else I may need to do.. I've got 250's 260's and 270's ordered..

THX Not worthy:
 

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its entirely up to you, as long as your engines not running too rich or too lean. The current jet should be fine, although you might have to richen it a little 1/8 of a turn or thereabouts should do it.
 
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