1954 Chevy Carburetor
1954 Chevy Rochester carburetor
1954 Chevy Bellair Air breather
The Chevy uses a single barrel Rochester carburetor, with a cleanable “air breather” (which distinguishes it from the earlier models, which used an “oil breather.”)

I removed the carburetor by removing the nuts from the manifold bolts, the fuel line, the wiper vacuum takeoff, the vacuum advance, and the accelerator linkage.