GenV fuel system question

[rock85gp]

I am putting a direct-injected L83 into my Grand Prix and was confused about the fuel system.
As it stands, I planned on buying a Holly Fuel pump in combination with a Fuel Pump Driver Module.
Currently, I have the OEM under hood fuse box and all the wiring harnesses except the Headlight harness.
Would this setup work?

Donor was 2020 suburban:
5.3 EcoTec Engine,6L80
VIN: 1GNSCHKC1LR150146

Fuel pump specs:
Application 1978-87 GM G Body
Brand Holley Sniper EFI
Emission Code 5
Free Flow LPH 350
Fuel Sending Unit Ohms 0-90 Ohms
Fuel Type Gasoline
Inlet Diameter (in) 5/16"
Product Type Fuel Pump Module
Warranty Limited 90 Day
UPC 090127129852
Part Number 12-329

 

[64nailhead]

Walbro Hellcat 525 pump or 450, or something that can be PWM'd. I would not recommend a Holley pump to anyone.

Are you planning to use the factory ECM? I'm guessing yes due to the 6L80 (that I know little about other than it's very difficult and expensive to run with an aftermarket ECM.)

 

[rock85gp]

Yes factory ECM, I’m going to try and keep it stock for the time being. I am waiting for hp tuners to get some ecm’s back in stock so I can tune it.

I will go with this pump, combined with the fuel pump module I listed above I should be ok with the PWM?

Thanks for the help.

Racetronix GEN2 Stainless Fuel Pump Sender w- Single HELLCAT Walbro 525LPH Pump for Turbo Buick GN & T-Type (Gas +E85)

Racetronix GEN2 Stainless Fuel Pump Sender w/ Single HELLCAT Walbro 525LPH Pump for Turbo Buick GN & T-Type (Gas +E85)

fullthrottlespeed.com

 

[Northernregal]

You don't need a big pump for a gen 5, its only an in-tank lift pump that supplies the high pressure pump. Just a regular walbro 255 and a relay to turn it on will work.

 

[rock85gp]

I ordered the Walbro 255 and Fuel Pump Driver Module. I am using the stock Intake and wiring, unsure if the fuel pressure sensor on the intake was all I needed. Or would I need to add a fuel pressure sensor anywhere? Also, would you recommend a good fuel filter for that setup?