Review on 🔧 Enhance Engine Performance with Quick Fuel 30-804QFT Fuel Pressure Regulator by Mark Bishop

I have this on my supercharged MGB. I have an SU electronic fuel pump, but sometimes the vent tube overflows. I bought it to reduce fuel pressure to prevent overfilling. Simply put, this controller does nothing. I installed a 0-15 psi gauge on one outlet port and ran a fuel line from the other outlet to the carburetor. Put a new fuel filter in front of the entrance. The fuel pressure regulator setting is not displayed. With the engine running I can turn the adjusting screw all the way and the pressure never changes.