Is it cheapest to go to a dealership and order a fuel pump from them? If so, what year/make/model or part number car pump do I ask for? Otherwise, who makes a good/cheap pump that will keep my car from running lean?

 

Steeda makes an excellent 255 l/hr pump that woul work well for your application.

 

I was reading the small print. The replacement fuel pump that they sell says it's good for naturally aspirated applications.
The hi-Volume ones (including the 255) are for older stangs.

 

go to www.summitracing.com or www.jegs.com and do a search for fuel pumps. I'm certain one or both of them will have a good pump that is designed to work with the newer Stangs. you know you might also want to get an adjustable fuel pressure regulator and a fuel management unit to adjust the fuel pressure under boost so you don't go lean too. probably cheaper than a new pump too.

 

a 190lph is the most you'll ever need unless you have a turbo or a supercharger with more than 10 psi..it's not a good idea to put a 255lph pump on anything else