Underdog

Hello everyone, I am new to the forum and I am the owner of a 1991 g60 with 75000 miles. The car has been sitting for 4 years. The I checked the fuel relay and it's fine but the fuel pump does not turn on.. I need to change it.. Since I am new to corrado's. I am asking for assistance, since I am going to Change it what should I replace it with.. I plan on adding hp to the vehicle, so in a nut shell if you could do it again what would you do... Thx in advance