Cook or soak the noodles according to directions on package and drain. Set aside.
Meanwhile, in a small bowl or measuring cup, whisk together the ingredients for the sauce.
Heat the oil in a large work set over high heat; add pork slices, sprinkle generously with salt and sauté for 2 to 3 minutes, until the meat is cooked about 3/4 of the way through.
Add shrimp and sauté until barely just cooked, about 1 minute; transfer pork and shrimp to a plate and return the wok to the heat source.
Add the onion and fry until golden and fragrant, about 30 seconds. Add the eggs and fry for a few seconds, stirring almost constantly, until scrambled and cooked about 3/4 of the way.
Add the noodles and reserved sauce to the wok and toss to combined. Return pork and shrimp to wok, toss and cook until pork and shrimp are cooked all the way through, about 1 or 2 minutes.
Kill the heat, throw in the peanuts, green onions, bean sprouts, and chopped cilantro.
Toss, transfer to a serving plate and garnish with lime wedges.