[Spridgets] another Weber carb question

[lindalnhvt at nhvt.net (lindalnhvt at nhvt.net)]

I have a facet fuel pump under the rear of the car near the original
location.  I don't remember the fuel pressure it delivers.  Anyone know? 
The Weber specs no more than 3lbs pressure, but prefers 2.5 pounds.
Do I need a pressure regulator?  If so, which one and where can I get one.

Dick Byrne in NH