I want to convert from the stock metal tube to braided hose under the hood. What size bib do I need to go into the fuel pump?

 

i'd help if you said what car and engine you have. if it's standard flared line i believe the threads are standard NF. go to a shop that makes hydrolic hose and you should be able to get one made with a short line and flare nut on one fitting. i just got two made with 1/4 flare on one end and -4 AN on the other.