1956 dual-chamber vacuum installation

[doug7740]

The attached is the Holley 4000 Carburetor Master List will tell you if you have the correct carburetor for your vehicle.

doug7740
1955 Thunderbird Blue

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[Bruce Hardy]

This makes no sense. Firstly, no, there is no "second port" that we can use "instead of the one that doesn't work". Secondly, the problem that we see is:


IOW, it's ALREADY below the plate, so why would a second one, even if it existed, below the plate make any sense?

Sorry,I mis-spoke. I meant a port above the throttle plate.