So, so far I have done the "air box mod", the "drilling the exhaust out to 5/8 drill mod" and I rejetted the stock carb from a 78 main jet to a 82 main jet. Stock pilot is a #40 so I left that alone. The bike sounds throatier but I think it bogs when opening up the throttle. I am unsure if it is lean or rich since I am new to jetting carbs. I am 600ft above sea level and looking for some input. Thanks.