I have had a few Holley pumps fail on me so I quit using them.I use a Carter competition pump on my car now and it's been working perfect for about 5 years now. Mine has 100 gph and 15 psi so I have to run a regulator but they make same pump with 8 psi.
Here's the link http://www.summitracing.com/parts/crt-p4600hp/overview/
Gus

64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60