I installed a Holley fuel pressure regulator and since the install, I'm having issues with the pump or regulator making noises. The gas tank is 1/2 full. This didn't start until I replumbed my fuel system and installed a new pressure regulator. Someone in another group said there was a known issues with these pressure/regulators doing that if you have 90° fittings installed near it. I have three 90° -AN fittings installed close to the regulator, two on the regulator itself. Holley is supposed to be aware of it he said. I don't know if they're yanking my chain, so I wanted to ask here.