Chocolate Kahlua Cake

1 (18.25 ounce) box chocolate cake mix
4 eggs
1/2 cup vegetable oil
1 cup sour cream
1/2 cup Kahl?a
1 small box instant chocolate pudding
12 ounces chocolate chips

Combine cake mix, eggs, oil, sour cream and Kahl?a. Stir in chocolate chips. Bake at 350 degrees F for 50 minutes in a greased and floured Bundt pan.