Question about buying Carter BBD for my 318 (unless I should look at something else)

If you have the notches (as shown in the photo) then the manifold gasket is *not* supposed to have notches (and vice versa) ? Do I have that right? Yes you do, That passage draws vacuum from both sides of carb,feeds
choke pull off etc. needs to get vacuum signal, make your own notches in gasket if needed. And if need too use notched gasket with notched carb.