Preheat oven to 350 degrees. Cut pitas in half forizontally. Cut into 4 equal poritons. Separate into 32 pieces. Place on an ungreased baking sheet. Brush with melted margarine. Combine salt, black pepper, cayenne pepper, pepper flakes, garlic powder and basil in a small bowl. Sprinkle over pita chips. Bake for 10 minutes or until chips become crisp.