Make sure your carb bowls are on rite side i bet thats why you cant kick it,look in carb bowl for tiny jet at bottom,that bowl goes on carb with choke,make sure crossover is in with proper stuff.Do a pressure test to the motor,6lbs for 6 min there is a sticky in repairs an mods forum.Your elevation is gonna require leaner jetting than that saying your motor is tight,im thinking 290 mains,27.5 pilots,stock needle 4th clip to start,the jetting you have now i would run at sea level