ok I have an offroad nitro. I finally got the idle needle to work. for some reason I had to screw it all the way out and back in for it to do anything. but now I have it correct.

Do you have 3 needles or just 2?
If you have 3- 1 is low speed needle, 1 high, 1 idle.
my book wanted me to put the carb at 1mm-2mm idle.
if 2 then high speed needle and idle.

turn right for close (lean) left of open (rich)

how is the car running, what kind of questions do you have about the settings?