brookly hobbies huh, i used to have my office around the corner on ryder street, i got a few of my rc's from them. Your richening the mix, not leaning it, lean is less fuel, rich is more fuel. start with the base setting of 3 out on the high needle and flush with the collar on the low needle and see how that is, do adjustments in small increments, 1/8 turns at a time. You may be fouling the plugs out to. i would suggest running 20% with an os a3 plug, 30% may be why its running hot, do you have a temp gauge? if not do you know how to do the spit test? little spit on the finger, wipe the head, if it sizzles and is gone in 3 seconds or less, your hot. if you richen the mix on the high end more you should cool the engine off, if not you may have and air leak and it leaning the mix out without you doing anything.