[Hotrodjohn71]

Hi group, I have a 1967 Pontiac Firebird that came with a 326 motor from a 1965 car.
This motors 2 barrel carburetor is set up with the electric switch kickdown for the transmission that it originally came with (see photo).
I'm putting a turbo 350 transmission behind this engine in my Firebird. This Turbo 350 Transmission has a kickdown cable.
My existing carburetor does not have provision for the kickdown cable but another 2 barrel carburetor I found online (see photo) from a couple years earlier Pontiac 389 car, has the provision for the cable.
My question is are these two carburetor bodies the same and only differing is jet size? I would like to get the carburetor online and maybe down jet it to the Jets in my existing carburetor. Thank you.