Review on 🔥 Holley 12-803 Reg, Fuel Pressure 4.5-9 Psi, Shiny: The Ultimate Fuel Pressure Regulator for High-Performance Engines by Justin Trujillo

I only installed it a few days ago but it seems to be working. The parts of the regulator on either side of the inlet port are unthreaded. After reading these reviews prior to purchase and installation, upon arrival I checked the holes, took the controller in the palm of my left hand and used the supplied screws to very carefully "punch" the holes. This worked well since the screws are much harder than the metal in the controller. It took less than a minute. I also pre-purchased the brass fittings (3/8" NPT) so installation was fairly easy. While I mounted the fittings, I also made sure to tighten the four screws on the top plate that hold the diaphragm in place Checked but everything was fine. Again, I agree with previous reviews that depending on how you need to use the mounting bracket, the screws provided will prevent you from installing it properly. I just used some smaller headed screws and everything worked fine The adjustment was quick and easy and seemed quite sensitive.The initial reading on the pressure gauge which I also installed on the second outlet of the regulator at the time was about 7psi.I loosened the jam nut on the adjustment screw and it only took about one 1/4 turn or less to bring the pressure down to 5.5psi for my application I got it about an hour after it was built in let it run and no leaks or pressure fluctuations were noticed. Let's see how it holds up over time.