In small bowl, toss 1/2 cup of the chocolate chips with 1 tablespoon of the dry cake mix. Make cake batter as directed on box--except stir in 1/2 cup of the coated chocolate chips. Reserve 1 cup of the batter. Pour remaining batter into pan. Stir chocolate syrup into reserved batter. Drop by tablespoonfuls randomly in 8 mounds in pan. Cut through batters in S-shaped curves. Turn pan one-fourth turn; repeat.