I was wondering if I should change the stock needles in my carbs? I am running with the airbox lid off and 290 mains. It seems to sputter a little when on the top-end of gears 3,4,&5. My plugs look good I just don't know why it is doing this. I have the following mods. below.Thanx

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My Banshee is pretty much an Alba Banshee. I live like 3 miles from them and did the pipe kit myself. They made me custom needles. I don't use an airbox lid. I have the prodesign airbox adapter with a K&N and outerware. I have 30 pilot jets, new needles, and 300 Main jets. You might need to run larger mains with all the mods you have added since mine is pretty much stock except for the pipes and airbox.