I'm sure most pumps that are alcohol compatable would work. I use to run a BG400 pump and a BG5000 filter. I liked the bypass built into the pump so I could run a dead-head regulator. Make sure your supply line is big enough. I used a #10 from the pump which is a bit overkill. I don't know why you would use a lean out valve for a carb. That seems to be associated with injection, which I run now. Maybe someone else might know of a use for a lean out valve for a carb? Again, whatever you decide on, make sure all your parts are acohol compatable! Good luck!