Any thoughts on using this EFI fuel Pump?

If you are referring to this one: Holley 255 LPH OE Style EFI Fuel Tank Modules part # 12-319 then I just installed one with my Sniper EFI build. It installed very easily in the stock tank. Wiring is four wires. Pump has regulator so I am getting right around 60 psi to the Sniper throttle body. Seems to work great, but I just finished install and only have about 20 miles so far. I prefer it to the external pumps, this one is quiet, only hear it when ignition is in run position to prime before starting. My fuel level gauge is not working great, but I suspect it is the guage and not the sending unit (haven't had time to check what ohms are being sent yet).

Edit: and it is returnless, only one fuel line needed which is easier (I ran Earls fuel line and removed original hard line).

Mark