Sniper EFI Return on Stock Tank With Drop in Fuel Pump; How?

Hello all,
I’m running Sniper EFI on my 360 and was wondering how I’m to run the return. I’m using a stock tank with one of these drop in fuel pump modules:
Holley 12-319 Holley OEM Style EFI Fuel Tank Modules | Summit Racing
I bought my EFI kit slightly used and it didn’t come with the return line kit.