Marinate the chicken and shrimp with the grated garlic clove, oyster sauce, and white or black pepper. Set aside.
In a separate bowl, mix the remaining oyster sauce, Thai fish sauce, Thai light soy sauce, palm sugar, and an optional 1 teaspoon of dark soy sauce. Stir well and set aside.
Heat your wok until it smokes, and add 2 tablespoons of oil. Fry the garlic, Thai chili, and shallot until aromatic.
Add the chicken and shrimp, and cook until golden brown, stirring often. If using dry noodles, soak them in hot water for 2 minutes and drain before cooking.
Add Bok choy or Chinese broccoli and cook for 1-2 minutes. Then add noodles and sauce, stir until combined and the noodles are coated in sauce.
Stir in red chili and basil, turn off the heat and serve with lime wedges.