Maybe this will help you as it helped me. I saw the article sometime in the '90s, I think this is rehash, but whatever....

https://www.hotrod.com/articles/safe-and-efficient-electric-fuel-pump-wiring/

This plan has worked for me for alot of years, it's cool but it is lacking one thing--A way to manually fill bowls when they are empty.
Using this setup the pump will kick on when oil pressure is developed during cranking, but myself I like to have the bowls
already full before then. So I changed it a little bit to allow me to do that easily from underhood, which is handy when making
changes to the carb that require the bowl to be pulled, or if it has sat for a long time.