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How do you fix low vacuum signal or inadequate pump shot on a small Chevy?
Wiki User
∙ 14y ago
If the engine has a new cam, perhaps the low vacuum is caused by the cam being too big for the application. Low vacuum could also be caused by gasket leaks or vacuum line leaks.
If the engine has a Holley carb, the pump shot can be changed by readjusting the linkage, changing the discharge nozzles to a larger size, or changing the accelerator pump cam.
Wiki User
∙ 14y ago
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