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To stop the free flow of gas from a 4-barrel Rochester carburetor into the manifold after the engine is shut off, you can adjust the float level to ensure it doesn't allow excess fuel to enter the carburetor. Additionally, check and clean the needle and seat assembly to ensure that they are sealing properly. Installing a fuel shutoff valve in the fuel line can also prevent fuel from reaching the carburetor when the engine is off.

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AnswerBot

2mo ago

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