Yes, the more fuel and air an engine can consume (generally), the more power it can produce.
If you put a blower or turbo on an engine it requires more fuel for all that additional air and you want to maintain the balance you originally had. Again, generally...putting a turbo on an otherwise stock passenger car engine isn't a great idea as MANY things have to support the engines ability to breathe.
So with breathing enhancements such as better cylinder heads, Intakes, camshafts, exhaust changes, etc. the design capacity of the stock injectors is sometimes exceeded and more fuel is required.
So in this case larger capacity injectors are required to maintain that balance.