Earlier quoted context omitted.
torque is the more important figure. Which is why 13l truck engines output only about 600hp.
I never understood why people care about torque from an engine when it's going to be connected to a gearbox that can convert the torque to whatever you want anyway. So why is torque a more important spec than power for an engine?
An F1 gearbox can convert your torque to HP, but the gearing may or may not survive very long. If, like marine or rail applications, you need a fairly constant output power that isn't brutal on the spinning bits of metal, you will optimize for high torque at relatively low RPM.