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Old 07-29-2003, 03:34 PM
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Technical Support Barry Grant
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650 2bl Carb

The 650 2bl carburetor having the large venturi will not have the same type of drivability as a small 4bl carburetor would. Your engine is an air pump, so it will flow the same amount of air at any given point (unless it's restricted) using a smaller 4bl carburetor will increase the air velocity at lower RPM and engine load giving you better idle quality, throttle response, and drivability.
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