Trim pork of excess fat and cut into 4 pieces; one piece may have a bone—do not remove at this point.
Combine spices in a small bowl and rub on all sides of each pork roast piece; place all in large baking pan.
Preheat oven to 300°F; pour cola around the pork in baking dish; cover and cook for three hours; uncover and cook one hour more; if pork does NOT easily pull apart with a fork, cover and cook an additional hour; continue cooking, covered, until pork easilly pulls apart.
Remove roast from oven and shred meat with a pair of forks; if there was a bone, remove and discard.
Toss pulled pork with your choice of barbecue sauce, if desired.
Nutrition
Nutrition Facts: Servings: 4; Amount per serving: Calories 294; Total fat 12.3g 18.9%; Saturated fat 7.5g 37.5%; Cholesterol 84mg 28.0%; Sodium 1439mg 60.0%; Carbohydrates 25.9g 8.6%; Fiber 4.2g 30.0%; Sugars 15.2g 30.4%; Protein 20.4g 40.8%; Based on DV of 2000 calories per day