Heat oven to 350°F. Grease and flour 13x9-inch pan. In large bowl, combine cake mix, cinnamon, cloves, carrots, buttermilk, oil and eggs; beat at low speed until moistened. Beat 2 minutes at high speed. Pour into greased and floured pan. Sprinkle with nuts and chocolate chips.
Bake at 350°F. for 35 to 40 minutes or until toothpick inserted in center comes out clean. Cool 1 hour or until completely cooled.