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This valve is installed with the weight pointing downward. Picture shown in catalog is upside down from installation orientation.
The function of this valve was to keep the warm exhaust air in the manifolds for a longer period of time when the engine is cold. This would warm the manifolds faster, which would warm the choke faster. NOT NEEDED if you do not drive the car in cold weather.
Needs (2) 9450 Gaskets.
Make | Model | Years |
Ford | Thunderbird | 1955 - 1957 |