Pasta Salad

1# mostacoli (cooked and drained)

1/2 cup oil

1 1/2 cup sugar

1 cup vinegar

1 tsp. salt

1 tsp. pepper

1 tsp. garlic powder

2 tsp. prepared mustard

1 cup pimentos

2 tsp. parsley flakes

1 cup chopped onion

1 cup chopped green pepper

1 chopped tomato