Mom's Blueberry Muffins

Ingredients

• 1 3/4 cups flour
• 1/2 teaspoon salt
• 1/2 cup sugar
• 3 teaspoons baking powder
• 1/2 teaspoon cinnamon
• 2 eggs
• 1/4 cup oil
• 3/4 cup milk
• 2 cups blueberries
• 2/3 cup brown sugar
• 2/3 cup chopped pecans
• 1/4 cup flour
• 2 teaspoons cinnamon
• 1/4 cup (1/2 stick) margarine