What Fuel setup are you running
I've run a few different pumps and had varying results.
The in tank pumps are silent, just like a brand new car.
I've run an Aeromotive A1000, quiet
Last is a holley black. YOu can hear it a little, but it is very mild.
I'm sure it depends on how, and where they are mounted, as well as how much sound deadening work you've put into your car.