last time i had the bike jetted it was by the dealer when i bought pipes/silencers, k&n filter, boyseen reeds, and a dynojet stage 2 kit, no snorkle, they jetted it accordingly and it ran good (280 mains) my elevation approx sea level, now i want to put the k&n powerlid does 1 main jet size up sound like enough? seems to be running well