In a mixing bowl, combine corn and sugars. Add eggs and oil; beat until well blended. Combine dry ingredients; add to batter and mix well. Stir in raisins and nuts. Pour into a greased 1 3-in. x 9-in. x 2-in. baking pan. Bake at 350! for 30-35 minutes or until cake tests done. Cool thoroughly. For frosting, bring butter and brown sugar to a boil over medium heat. Remove from the heat. Stir in milk. Stir in confectioners' sugar until frosting is desired consistency. Frost cooled cake. Yield: 12-15 servings.