1 pkg. white cake mix
1 sm. pkg. pistachio pudding
1/2 c. salad oil
1/2 c. chopped nuts
1 c. club soda
1/2 c. chocolate syrup
4 eggs

Mix all ingredients except syrup until smooth. Pour 2/3 of batter into greased and floured tube pan. Add syrup to remaining batter. Pour into pan and use knife to marble. Bake at 350 degrees for 50 minutes.