Here are two 1920s/Early 1930s Schebler updraft carburetors. Both are marked "Schebler Mod S-3" and "SV-154" on the bodies. The both have approximately 3" center to center mounting holes and 1 3/4" bores. These are in nice, original condition and just came from long tern, indoor storage. They have aluminum bodies and steel bowls. The aluminum lo..