Hypothetically yes, if you're on the stock turbo. In reality maybe, maybe not. You may not be able to get them to 100%, but you'll probably come close, and you don't really want to run them past 80-85% duty cycle for longevity. My advice, you're talking about future plans, just do the injectors right and be in a safe duty cycle range. If your future plans include a larger turbo, then obviously you'll need injectors even if it's tuned to 18 psi or even less.
In case anybody reading this doesn't understand- Higher CFM (bigger turbo) at the same PSI still results in more air in the engine, thus the need for more fuel. I guess think of it as two ballons under the same pressure, but one is twice the size. Yes they're at the same PSI, but the larger balloon is going to hold more air.