The automotive carburetor has three basic functions to perform. They are: 1. Metering; 2. Distribution; 3. Atomization. METERING – means automatically delivering the proper amount of fuel and air to the engine under all operating conditions and speeds. DISTRIBUTION – means an equal amount of fuel and air in each cylinder and a well distributed mixture in each combustion chamber. www.carburetor-manual.com BASIC CARBURETION Continued… The automotive carburetor, although relatively inexpensive and easy to service, is expected to meet many demands of the car owner, such as: 1. Maximum Power 2. Economical Operation throttle maneuvers or weather conditions 3. Flexibility (e.g. altitude) 4. Smooth operation regardless of 5. Rapid Acceleration A – O” HG VACUUM NO VELOCITY B – 1″ HO VACUUM LOW ELOCITY LAROE AREA C – 1″ HO VACUUM HIGH VELOCITY SMALL AREA D – 2″ HO VACUUM MODERATE VELOCITY MODERATE AREA…

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