In a large bowl, combine the eggs, zucchini, oil, pineapple and vanilla. Combine the dry ingredients, stir into egg mixture just until moistened. Fold in nuts and raisins if desired.
Pour into two greased 8 in. x 4 in. loaf pans. Bake at 350 for 50-60 minutes or until toothpick inserted near the center comes out clean. Cool for 10 minutes before removing from the pans to wire racks to cool.