Add the sunflower oil to a hot wok over high heat. Add the egg and stir-fry for 20-30 seconds until cooked. Add the sliced onions, carrot, chilli, beansprouts and prepared noodles. Add the cooked pork, MSG, chopped garlic in oil, dark soy sauce, light soy sauce and water. Stir-fry for 1 minute. Add the curry paste and stir-fry for another 1-2 minutes until the curry is mixed through the thin noodles. Add the spring onions and mix well once more.