Sift together the flour, salt, baking soda and baking powder.
Cream butter and sugar in a large bowl.
Add one egg at a time into the creamed butter and sugar bowl. Beat after each addition of egg
Add vanilla and bananas to the creamed butter and egg bowl
Add dry ingredients to the creamed butter bowl. ¼ of the dry bowl at a time
Add ¼ of the 7-up and mix
Repeat number 6 and 7 until all ingredients combined
Fold in nuts
Grease two loaf pans. I prefer Crisco (But you can also just line with parchment paper like I did)
Fill each pan evenly
Place in oven for 50 minutes or until done. Fork in the middle comes out clean
Notes
Be sure that you line your bread pans with parchment paper and not wax paper. If you would like to conserve the amount of parchment paper that you use, you can grease the pan and only line the bottom with parchment. Lining the bottom will ensure that the bread holds the shape of the bread pan. If you are not concerned about the shape you can line the entire pan in parchment. I prefer that method as it is a quicker process.