Torque Monster !

Uncle Tony, on the same show, within hours of each other, dynoed a 440 with iron then alloy, and lost power with the alloys. As I recall it was more than 20hp, on a 500hp build. To be fair, the alloys picked up a few ftlbs in the midrange.
On a street SBM that is about one cam size or 5/6psi or more than .5 point of compression.
But again, these are WOT numbers and have nothing to do with your build. The only reason you would have to rev past 4000, is to get a lil higher rpm on the next in-shift.
No, in your combo;
You want Max Running Pressure at cruise rpm. But you can't have it cuz then the engine will detonate the skirts off the pistons, or worse, at WOT. So second best is to run as much cranking-pressure as you dare to, for cruise pressure,and still remain without detonation under full-load/full power.
You can probably do that with 160/165psi in iron on 91 gas. Or with alloys,maybe 185psi on 87E10, 190 on 89, or 195 on 91octane gas. All designs with tight-Q.
That's a 30 psi difference, or 18% increase in pressure, on same grade gas.
I have no idea how that will affect the power curve, but I do know that my engine (180psi/alloy) is way overkill for the mere 3650 pounds it has to haul.
And, the 360 with KB107s practically falls together at the right pressure with closed-chamber alloys.
Now, if it was me, I would run even more pressure, but with meth or water-injection as may be required under power. I was fully prepared to go that way with my build in 1999, because no one knew anything back then, or was certainly not talking about it. But my first combo proved right away that I was ok without it.