wiring for EFI

A few amps is correct for an EFI fuel pump. In my Holley Pro-jection, that is supplied from the computer box because they only run the pump for 2 sec when first powered-up, then require an rpm signal to keep the pump running (for safety). But, they suggest installing a relay (powered off battery via a fuse) so the computer need only command the current, not supply it. I forgot how the Holley Commander 950 does it, but the harness might have such a relay. Have Holley's instructions gotten worse, or did you not read them carefully? I sure wouldn't power it off the choke circuit, nor via the key switch.

BTW, Holley's original fuel injection was designed by the guy who runs Big Stuff (sold mostly to racing teams), and the original boxes said "by MSD". Seemed with Pro-jection there was only one guy at Holley (Woody) who could answer any tech questions, and the design was very marginal. It got much better by Projection 4DI which was essentially the later Commander 950.