Heat oven to 325 degrees. Coat two 8X4 inch loaf pans. Dust each lightly with flour. Set aside.
In a medium bowl combine the flour, salt, powder, soda, and cinnamon. Stir with a whisk to combine and aerate ingredients. Set Aside
In a large bowl beat the eggs. Add the oil, and sugars and stir until well blended. Add the vanilla and stir once more. Add the dry ingredients and stir until the mixture is well, mixed. The batter will be thick.
Grate the zucchini using the coarse side of a box grater. roughly chop the nuts and toast them lightly if that's your thing. Stir the zucchini and nuts into the batter.
Divide the batter between the two prepared pans. Place the pans on a cookie sheet and bake in the preheated oven for 40 - 60 minutes. A toothpick should come out clean when poked in the center.
Remove from oven and cool in pan for 15 minutes. Remove from pan and allow to cool completely. Slice and serve or freeze for another day.