Since the intake is a 1968, it would be important to check a Chevrolet parts manual to see if a plate were used.

The Rochester manual doesn't show one, but Rochester didn't show all of the plates, and I don't have the Chevy manual.

If it is supposed to be there, it should be there.

Jon

Good carburetion is fuelish hot air
The most expensive carburetor is the wrong one you attempt to modify.
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