Sift first four ingredients together; set aside. Beat eggs; add oil, buttermilk, sugar and vanilla. Blend well. Add to dry ingredients, mixing thoroughly. Stir in pineapple, carrots, nuts, coconut and raisins. Pour into greased and floured 13×9-inch pan. Bake at 350°F for 55 minutes, or until toothpick inserted in center comes out clean.
Meanwhile for glaze, mix sugar, soda, buttermilk, corn syrup and butter in saucepan. Boil 5 minutes. Remove from heat and add vanilla. Slowly pour over hot cake until all is absorbed.
Serving Size 1 cake
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.