7-up bundt cake

1 1/2 cups butter or margarine
3 cups sugar
5 eggs
3 cups flour
2 tablespoons lemon extract
3/4 cup 7-up

Beat butter or margarine and sugar until fluffy. Add eggs one at a time and beat well. Add lemon extract, flour, and 7-up. Bake at 325 for 1 hour-1 1/4 hours.