on the zenith carb, on the bottom rim, there's a small brass slotted screw with a hole in it. at least there's supposed to be. mine's missing. what does it do? i notice the carb sometimes idles too fast, but will slow down if i blip the throttle. could this be the cause?
Overland Blue, 1953 GMC 1/2T, 100-22, 228/1bbl, 4sp/4.10 6v, shortbed/fender side/5-window.
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