You simply jet the carburettor so the engine is running on the very edge of 4-stroking at max rpm of 5,000, then place the needle as low as possible or seen another way, placing the "E-clip" as high as possible on the needle, and it's job done.
You will have a carburettor that operates flawlessly at idle and transitions flawlessly when you snap open the throttle, and runs reasonably anywhere in between.