Yes , It is available. It's $89.95. You will need to change the jetting to leaner on the pilot and main jet. But, I prefer to make my own which cost me nothing, as in free. It works great. Use any kind of thin metal,( I prefer stainless steel) about .020 thousandths thick. Example, bottom of coffee can. Cut and trim to fit the back of the carborater. You can either JB weld it in or cut a slot in dead center on the back edge of the carborater to insert. Good Luck on your decision.