Correct replacement of the original carburetor spacer unit found on 1964-68 Mustangs with 6 cylinder engines. The spacer installs between the carburetor and the intake manifold. Designed specifically for 6 cylinder models with 1 bbl. 4C Trans including a smog pump. See listing below for additional models. Note: For use on pre January 15 1968 models. OE part number # C3UZ-9A589B.
