You want to peak the high and low needles the same as you would your glow engines..back off the high a few hundred rpms for the first few gallons..set the low the same as your glow engines but stay on the fat side..After you start flying you will see if you need to lean or richen the needles. What I do is slowly lean the low end after each flight until it smooth's out..this can be a different setting from the ground tuning because as DK says, you will lean out a bit in the air so you want to start on the rich side..