327amc,
Fibonachu is absolutely correct, Holley has a bunch of pumps to choose from. I went with the Holley 12-305, 255LPH, in tank pump. The TB has a regulator and regulates fuel pressure to 58.5 psi. The inline Earls fuel pressure gauge shows 60 psi at the TB inlet.
Are you thinking of installing an in tank pump or an inline pump?
So far so good with my system, no issues.