Preheat oven to 350 degrees. Beat together; margarine and sugar. Add eggs; one at a time, beating after each one. Sift flour and soda together. Add flour, buttermilk, chocolate syrup and nuts to creamed mixture; beat well. In the microwave; melt candy bars. Stir into batter by hand. Bake in bundt cake pan at 350 degrees for 1 hour and 5-10 minutes, or until knife inserted comes out clean. Remove and cool. *This is a very moist cake. One for the chocoholic in us!
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