That's the one I’m using with the low pressure spring. The pressure at the holley efi pump is internally regulated, once I’m EFI which will require 58psi, once boost is applied there will be no upping of the pressure from the base 58. So I need to look at the aeromotive pump or buy another external pump.
Yea you definitely don’t want an internally regulated (at any psi) pump with efi and boost. You can use fuel pressure to “crutch” too small a set of injectors if needed. And the ability to tune above 58 psi is a good one to have.
