Do the math:
30 lb (injectors) X 8 (cylinders) X .85 (duty cycle)/.6 (Brake Specific Fuel Consumption; supercharged engine)= 340 HP
You can easily support 340 FLYWHEEL HP. In theory, you can support up to 400 FWHP, if you remove the .85 duty cycle, but you'll be maxing out the injectors with no safety margin.