Originally Posted by Infinite
Higher pressures means lesser flow. Thats the problem with nonreturn systems, you have to run such high pressures that you lose flow. With a return style system fuel is constantly running through the rails, with a returnless, it does not.
Your terminology is vague and ambiguous. Higher pressure through an orifice (injector, fuel line, etc) results in more flow. That's simple physics, more push (pressure) will result in more flow - there's an equation for that.
However, when referring to a pump that has limited (fixed) capacity, asking it to deliver more pressure will result in decreased flow.