Combine eggs, sugar, oil, juice and pineapple.Mix well. Sift baking powder with flour and mix into pineapple mixture.Fold in nuts. Pour into greased waxed-paper-lined 9- x 5-inch loaf pan and bake at 35F about 5 minutes.Or fill greased muffin pans 3/4 full and bake 25 minutes.Makes 1 loaf or 18 muffins