Sift dry ingredients into bowl. Combine sugar and eggs inather bowl and beat with mixer medium speed for 2 minutes.Gradually add oil in a stream beating constantly for 2 to 3 minutes ( must ). add zucchini and vanill and blend well. Stir in nuts and raisins.Fold in sifted ingredients only till moistend. Do not overmix! Spoon into greased muffin tins and bake 400 20 minutes or tested done. Let muffins stand 10 minutes before removing.