Missing air cleaner parts and connections

What's the official name and where can I find it? '74 Dart, 225 /6, A904 auto tranny. The vacuum switch on top of the snorkel and the heat riser tube from the exhaust to the bottom of the snorkel. Also, what connects where on the vacuum switch on the side of the breather? Getting ready to swap my Holley 1920 carb to the original 1945 model and want to hook everything up right. Thanks to all for helping me out!