Replacement manifolds for 360 in a 74 Duster?

Hey guys,

So we are at the point in our engine build where we are starting to put everything back together. Block has been painted, new water pump is here, manifold is being painted and then will be installed.

Big question for us is what exhaust manifolds to buy? We thought that these Dorman manifolds (Dorman Exhaust Manifolds 674-234 a 360 would work (pictured below), but I read somewhere that center dump manifolds wont work on 74 a-bodies. Doe anyone have a recommendation on replacement manifolds that will fit the 360 (4179930-360) but will also work on the body of our Duster??

Any help would be great!

RNB-674-234.jpg