I too, have been looking at converting to EFI for my car (71 RR) and looked at all of the responses. Even before I stumbled on this topic, I've been looking at Holley. Currently, I have a Quick Fuel carb on my 470 stroked and dynoe'd at 600/610. The funny thing is I contacted Tanks Inc and Aeromotive about a tank with the pump mounted in it. Tank said no, they don't have one. Aeromotive emails me saying "Not current and don't see in the future"
Within a month, Aeromotive has the exact tank with the pump installed
. Thanks AndyF for that link! Holley suggest FR550-510
https://www.holley.com/search/?q=FR550-510