Another electric fuel pump mounting thread

Ok so I had a cheapo pos solenoid style fuel pump on my car.
I finally have decided to upgrade to a Holley red pump (no i am not worried about the noise). I have 2 questions

1. Why does the pump have to be mounted as low as possible.

2. Where are you guys mounting these pumps to accomplish this? I am not using a fuel cell so space under the car is a little limited.

At the moment I am thinking of making some kid of cradle to hang the pump right next to the tank.