Preheat oven to 325 degrees. Spray a 12 cup Bundt pan with Baker's Joy or other flour-added baking spray.
Combine cake mix, pudding mix, milk, oil, syrup and eggs in a mixing bowl. Beat on low speed until mixed, then increase mixer speed to medium and beat for about 2 minutes. Stir in chocolate chips and pour into Bundt pan.
Bake for 55 minutes to 1 hour, or until cake tester comes out clean. Let cake cool in pan for 10 minutes, and then turn out onto cooling rack. Sprinkle with powdered sugar for garnish, or drizzle with chocolate glaze.
Combine chocolate and milk in small saucepan. Cook and stir over low heat until blended and mixture comes to a boil. Lower heat and cook, stirring constantly until thickened.