Evan isn't that EFI pump a high pressure one? All of those I've seen produce at least 20 and some up to 60 psi. It will be more quiet but if used with a carburetor, I'm afraid anything more than about 5 wouldn't work well. I've been using a frame mounted pump for several years with good luck. The one I have produces about 2.5 psi and that works fine with a 235. The same pump is being sold on Amazon. https://www.amazon.com/gp/product/B00496RE82/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1

I hate to suggest a Chinese-made product other than soy sauce, but I bought the first one of these in 1997 and replaced it in 2018.

~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end