my car is a cen ct4 stock standard dont know much about the needle settings they are still at factory settings all i have done to it is lean it out a bit after running it in. The controller is just an attack 2er multi purpose remote. It seems (as if it was a real car) to be starving for fuel or miss firing it struggles to get a clean flow up to speed spluttering and farting and carrying on.
Hope u can help i want to get it to the track sometime soon thanks for your time. Allan !