1405 lean at WOT

It's not a matter of like or dislike. It is easier to maintain a full bowl with lower inlet pressure. It depends a bit on the how the regulation is down, the amount of restriction in the inlet and pump flow relation to pressure. 6.5 psi is about the upper limit what the inlet - float system can handle.

If you want an example of how this works both in theory and in practice, Cudafever tested it out with his electric pump on his race car.
Holley/Demon Carb stumble