Grease and flour two 8.5 x 4.5 x 2.5-inch pans. (You can also use three 7 x 3-inch pans; just bake 10 minutes less.)
Preheat oven to 350-degrees.
Combine flours, sugar, baking soda, salt and spices into a very large bowl. Stir well to blend.
Add pumpkin, water, vegetable oil and eggs.
Beat until well combined.
Pour into prepared pans and bake for 1 hour to 1 hour and 10 minutes or until a toothpick inserted into the center comes out clean.
Cool for 10 to 15 minutes before cutting. Enjoy!