Holley 12-803BP Holley bypass style fuel pressure regulator for carbureted engines.
Used in systems with a return line back to the fuel tank.
Provides longer life for electric fuel pumps.
Allows the electric fuel pump to run quieter.
Preset to 7 psi.
Adjustable from 4 1/2 to 9 psi.
One inlet and one outlet port.
One bypass port to return fuel to the gas tank.
All ports are 3/8" NPT.
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