Depends on what carb I use but normally when I get a new car I won't touch the carb settings til after run in let it run a little rich for first couple tanks then just tune it by sound on the high end needle. Sometimes you may need to adjust low end and idle screw just depends on carb you have. You will have to look up your factory carb settings for whatever carb you have. And just slowly tune it from there. Best advice is to listen to your engine. I Normally use a 990 carb 1out on low and 1 and half out on high and tune from there. I hope that helps cheers
track it on a loose dirt lot those tires are just begging to rip dust everywhere!!! Like a proper buggy should!! Cant have anawesome sounding rc like that and not have it fling dirt and dust around thats what there meant for!! lol