In A Large Bowl, Combine The Corn Chips, Nuts, Pretzels And Crackers. In A Small Saucepan, Bring Butter, Brown Sugar, Garlic Powder And Chili Powder To A Boil. Remove From The Heat; Stir In Baking Soda. Pour Over Snack Mixture And Toss To Coat. Transfer To Three Greased 15-In. X 10-In. X 1-In. Baking Pans. Bake At 350