Don't know their exact 1960 purpose, but have seen it on many Rochester (No "D" needed) carburetors. Like a purpose built vacuum leak, but NOT until the throttle is opened. They make the carburetor flow a TINY bit more air is about all they do. Not to worry, clean them, reassemble them and use them. Mike
They allow non filtered air and dirt to enter the interior of the carburetor. Idling around town the carb gets hot and the extra air is supposed to smooth out the idle. The plus is it adds extra air at higher rpms to cause detonation and suck in dirt. (poor man's hot idle compensator valve) They are similar to the idle control valves in the base of the Holley 2100 carbs. However Holley uses a vacuum valve to open and mix the ported and manifold vacuum to raise the idle so the engine does not stall.
JB weld them suckers up. I don't remeber any of my 2Gs having those..?! Sent from my LM-Q720 using The H.A.M.B. mobile app
^^^^^ Put (fat) tooth picks in first and see how it idle's and or run's. If it don't then all that has to be done is pull them out.
Before you undo something done by a carburetion engineer, read this article from my website: http://www.thecarburetorshop.com/Ventedgaskets.htm Same function. Jon
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