Unloader (All Models)
With throttle valves held wide open, clearance between upper edge of choke valve and inner air horn wall should be as specified (see Specifications ). Adjust by bending tang on throttle lever (all models except Oldsmobile). On Oldsmobile 2GC carburetors, adjust by inserting screwdriver blade in slot in throttle lever and banding tang toward pad on intermediate choke lever for more clearance, or away from pad for less clearance.