OK, maybe I shouldn't have read it, but there's an article in this month's Dirt Bike that highlights their WR426 project bike. Their modifications included the installation of a Power Now carburator wing, which is fitted into the carb inlet after the airbox. They claim it improves performance up to 1/2 throttle, as it increases the air velocity thru the carb. Does anyone have any experience with this device? I am wondering if it's worth the $69.