Ok this should be fairly easy for you guys. My bike is bone stock besides the single HMF exhaust. HMF suggested 142 and 145 jets. I'm at about 75 feet above sea level, and I think HMF's suggestion was at 900ft. The bike runs ok, but its got a few issues. I can noticably tell a lack of power throughout all RPMs, and at WOT long runs on the top end, it pops and sputters a good bit. I'm pretty sure its on the rich side by smelling it. It actually ran much better with the stock jets installed. almost perfect actually. What would be a good remedy to this issue besides changing the jets back out? Would cutting some holes in the airbox lid help out a little bit?