Prepare cake mix according to the instructions on box and pour into two 8" cake pans. Bake at 350°F for 38 minutes. Let cool than but in freezer for 30 min to harden.
While this is happening prepare the pudding and place in the refrigerator to get cold.
When cake is cold cut each layer in half. Starting with first layer spread the pudding about 1/4-inch thick and continue this until you use all four layers. Then take Cool Whip and ice the whole cake then with a pastry bag or spoon. Place five big scoops on top finishing with pecans on top and sides. Then melt chocolates and dribble all over the cake. Refrigerate until ready to serve.