When converting a factory EFI Truck or Celica to a carburetor setup, this fuel regulator will save you the hassle and expense of replacing the factory in-tank fuel pump. This Mallory Fuel Regulator will reduce the factory 36 psi fuel pressure to the 3-6 psi. It features a by-pass port to return unused fuel to the tank using the factory return line in the same manner as the stock EFI system.
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