Stock pump is bad enough. If you are buying a pump new, get a 190lph. That way you have room to grow. Not really anything "too big" in terms of fuel pumps.
Use a 155 or if you plan a supercharger use a 255.
The 190 serves little purpose. Too small for a supercharger, more than you need for everything else.
Agreed. That pump mentioned flows less than 2/3 the volume that the stock pump does (88 LPH was the rating for early aero fox pumps - SN's run a slightly larger pump).