Suggest before you buy a pump make sure it is made to use alchohol and methanol fuel or you will have thepump going bad very soon if you use gasahol in it and good gas is getting hard to find unless you want to pay the price for avgas. MarvIf you are using an electric pump to boost the mechanical on startup, I suggest using the Facet pump, Made in the USA for aircraft. The pumps output pressure is electronically controlled to stay within a specific range, for example part # 40163 is rated at 1.25 to 2.4 PSI, at 17 gph. $33.00 from Aircraft & Spruce. Made by Purolater in NY. Excellent tech help.
Yo russcc, are those pumps quiet? I have a Carter on my '36 and while it works well, it is kinda loud.
Also, something I did that has worked well is drilling and tapping the bolt that goes through the banjo to 1/8 npt. That way you can put a gauge right in the fuel line to the carbs.