Mechanical vs. electric fuel pump?

I`m running it on my 440-496 stroker motor. It`s been a while since I installed it but if I remember correctly it flows over 100 gph, I think about 110 but it may be as high as 120 gph. It`s at a reasonable pressure too, somewhere around 7psi., so I don`t have to use a regulator. Many serious racers will back up a mechanical with an electric. I had one in my 440-6 Super Bee, but like John was saying I hated the sound of that thing running back there. I wouldn`t suggest installing one unless you start making mad horsepower.