Grease and flour 2- 8x4 inch loaf pans. Preheat oven to 325.
Sift flours, salt, baking soda, baking powder and cinnamon in a large mixing bowl.
Beat eggs, oil, sugar and vanilla in a separate bowl. Add dry ingredients to wet and stir gently until combined. Add zucchini and nuts and stir again.
Pour batter into prepared pans and bake for 40-60 minutes until toothpick inserted comes out clean.
Cool for 20 minutes.