67 - 273 4bbl and 69- 340 4bbl

Carter Carburetors

1967..........273 4-Barrel

#4294S or #4295S (Factory Advertised as a 500 CFM w/Mechanical Secondaries)
Primary.........1 7/16"
Secondary.....1 9/16"
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1969..........340 4-Barrel

#4611S or #4612S (Factory Advertised as a 625 CFM w/Vacuum Secondaries)
Primary..........1 7/16"
Secondary......1 11/16"