01-04-2002, 10:43 AM
OK... i have a '99 400EX with an IMS 440EX bigbore kit and a K&N Filter and Jet kit and still run the stock cam and stock exhaust. I dont have time at the moment to test and tune the jetting and was hoping someone might know the best jetting for this thing. I live in Alabama and woods ride 95% of the time. Any help will be greatly appreciated. Thanks in advance.