Holy Jesus, Mary and Joseph - $300+ for a pump and pickup makes me feel better about welding in a sump. Especially for a 255lph pump. I'm sure it works for many, many builds, but a 255 is going to be done way before 600 crank HP on an NA build. But Holley does make it as a plug-n-play setup, which is probably the market they are chasing after.Basically a wick that draws fuel to the pump and acts as the pickup inside the tank. Holley sells it. You can buy various sizes, or you can buy the pumps for our G bodies with the hydramat already on it.
Holley Sniper EFI 12-306 Holley EFI Fuel Tank Modules - 255 LPH - GM G-Body Vehicles
This in-tank fuel pump module is a high-pressure unit that flows 255 liters per hour (LPH) and is capable of supporting electronic fuel injection (EFI) engines producing up to 550 horsepower. Featuring a pre-calibrated fuel-level sending unit designed to work with the factory fuel gauge for this...www.holley.com
To each his own I guess.
EDIT : just noticed that the OP appears to be long gone, unfortunately 🙁