Ok first things first.....from what general area do you hear the whine? Is it from the front or the back? Can you hear it in the engine bay? Lets start with where its coming from first it may not even be a fuel pump at all could just be a dead idler pulley on its dying limb. I had a whine and that's what it turned out to be for me.
1996 Mustang GT, 17x9 front and 17x10.5 cobra r replica rims, 255/40/17 front 285/40/17 rear at the moment,
o/r x-pipe flow master 40 series dump downs, cai/ram intake, 75mm c&l throttle body and plenum, pi heads and intake swap, msd wires, stock gears, untuned at the moment, no dyno numbers for now.