Sift together flour, baking powder, baking soda, sugar and salt. In a separate bowl combine eggs, orange zest, vegetable oil, corn syrup, water, evaporated milk, orange extract and food colorings. Add to dry mixture, stirring only until moistened. Pour into 2 well greased loaf pans and bake at 350 degrees F for 50-60 minutes. Note The list of ingredients was given to me by the Islander Coffee Shop manager, Roy. He didn't have time to give me the method, sooo, I have developed the method using my Orange Muffins recipe, which uses basically the same ingredients. Test for doneness in the usual way.