Holley fuel pressure regulator, often used to control fuel flow to carburetors.Function: These regulators precisely manage fuel pressure from the pump to the engine, preventing overloading of the needle and seat which can cause flooding.Specifications: Models like the 12-804 are adjustable, with a typical factory setting of 2.8 PSI, but can range from 1 to 4 PSI.
selling as pictured.
more than welcome to pick up at shop in butler pa & save shipping.
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