I used boneless chops and grilled them for about the same time.

Sweet & Sour Pork Chops
• 2 tablespoons butter or margarine
• 1/2 cup packed brown sugar
• 2 tablespoons cornstarch
• 1/8 teaspoon salt
• 1 1/2 cups pineapple juice
• 1/2 cup cider vinegar
• 1 tablespoon soy sauce
• 2 teaspoons Worcestershire sauce
• 1/2 teaspoon liquid smoke flavoring
• 1 cup lemon-lime soda
• 6 (1 inch thick) pork loin chops

In a saucepan over medium heat, combine butter, sugar, cornstarch and salt. Add pineapple juice, vinegar, soy sauce, Worcestershire and liquid smoke; mix well. Bring to a boil, stirring constantly. Cook for 2 minutes or until thickened. Pour the soda into a 13-in. x 9-in. x 2-in. glass baking dish. Add 1/2 cup of the sauce; mix well. Add chops and turn to coat; cover and refrigerate overnight. Cover and refrigerate remaining sauce. Remove chops, discarding marinade. Grill chops, covered, over hot coals for 10-15 minutes per side or until juices run clear or the internal temperature reaches 160 degrees F. Heat reserved sauce and serve over chops.