Im not sure. But try this test. Do a couple of high speed passes, then stop right in front of you. Idle for 10 sec. Then squeeze full throttle. If it takes right off the low end is too lean, and if it stalls the low end is too rich. The best thing is for is to bog for a second, while blowing LOTS of smoke, and the clear out and take off. Hope that helped. If u have anymore questions, pm me!
Cheers