Should I open up the side of my airbox?? stock carb (for now) Moriwaki headers and silencer w/ spark arrestor engine internally stock (maybe a cam soon?) What are the pros and cons of venting the airbox (sidepanel)? Are there quality kits available for venting the sidepanel or is it better to fab your own? I like the idea of being able to tape up a vented box as a method for making quick jetting changes on the trail. My last longer dual-sport ride started at 1300ft and reached almost 8000ft. It would be nice to tape up down low and remove the tape up high to try and get around making trail side jetting changes. What kind of jetting changes did you all find was necessary when venting the airbox. I ask not because I can't figure the jetting out on my own but because I'm wondering how much more air will flow. One main jet size? Two? Three?? If the extra flow only amounts to one size I'd be less likely to make the mod. FYI: I live at 1300ft. I was running a 178 main but found it was too rich in my rising (now 90+ and climbing) afternoon temps. A 172 feels OK in the heat of the day and nice and crisp (maybe barely lean) in the cooler (~75 deg) nights/evenings. I'm still playing with it.