1 yellow cake mix (not pudding type)
2/3 c. oil
3/4 c. water
4 eggs
1 box instant butterscotch pudding

FILLING:

1 tbsp. cocoa
1 tsp. cinnamon
1/2 c. sugar
1 c. chopped pecans

Mix first 5 ingredients and beat 10 minutes. In separate bowl mix filling. IN greased tube pan put 1/2 of the batter. Spread 1/2 filling mix on top and swirl with knife. Add rest of batter and repeat swirl with filling. Bake at 350 degrees for 1 hour.