Synchro-mesh Cars

Install.048" primary main metering jets found in package. DO NOT install the.125" restriction bushing in choke housing and DO NOT change any carburetor adjustment. Install new "B" code tag. Check accelerating pump rod location (See "ACCELERATING PUMP " under "Carburetion" on individual car model TUNE-UP pages). Adjust idle speed and mixture.

• 1966 BUICK STALLING AFTER STARTING CORRECTION (All Models):  Make certain correct starting technique used (push accelerator pedal to floor once only to allow choke to close and position fast idle cam, do not tap throttle again until engine begins to pick up speed, then tap throttle to position fast idle cam on warm-up step to prevent excessive speed during prolonged warm-up). Check following adjustments: Fast Idle Speed, Fast Idle Cam Position, Choke Piston Linkage, and Automatic Choke Setting.
  NOTE: For repeated complaints, choke may be set not more than 2 Notches Richer than specified setting (richer setting may result in car not starting in extreme cold weather due to overchoking).
• 1959 CADILLAC STUMBLE OR STALLING WITH COLD ENGINE CORRECTION:  On carburetors prior to change letter "B" (on identification tag), install new choke baffle, Cadillac No. 7010598, with 1/2" right angled extension on one side. This baffle used on later carburetors.
• 1965 CADILLAC HIGH SPEED FUEL STARVATION CORRECTION:  TWO filters used and plugging of either filter can cause engine to "run out of fuel". If filter in fuel bowl ahead of carburetor is not plugged, filter on end of fuel line at fuel tank gauge float unit should be replaced. Install new Fuel Tank Filter, Part No. 1486867, and make certain metal disc in bottom of filter is in place (disc prevents inlet pipe cutting into base of filter element).
• 1966 CADILLAC FUEL TANK VENT CAUTION:  Cars before No. 124828 have fuel tank vented through gas cap and vented caps (stamped VENTED) must be used on these cars. Later cars have fuel tank vented through a vent pipe.
• 1959-60 CHEVROLET V8 CUTTING OUT ON TURNS CORRECTIONS:  Make following changes on the various carburetors: