From the testing I've seen, TWO 255lph pumps running through the factory fuel lines, provides a higher fuel pressure for longer than a single 460lph or similar. 1 pump is not always better than 2.
Mine was doing 335kw on E85 with still room for more.
Also lol Birds you cannot complain about a 33 GTST Fuel Pump fitting. The only thing easier is a 32. Try fitting a pump in a 34 GTR!
I'd also say the latter, unless this "apprentice" is 30 years old and is working 1am on a sunday morning on a 12 hour shift, aint no apprentice getting paid that much an hour.