I need to purchase a intake fitting for my 71 Chevelle. I recently installed a GMPP 454HO in it and am fixing to install a CI hood. Now I believe I need the fitting with one threaded (power brakes) and two slip on (CI/kickdown and M40 automatic transmission)

This is what Ground-Up offers...is it correct for my needs?

http://www.ss396.com/mm5/graphics/00000009/APN-738.jpg