Is it advantageous for a N/A engine to get lager output injectors or is really only necessary for F/I motors. What would be the biggest injectors upgrade to?
Being N/A, no. Unless you start pushing the limits of the OEM injectors to 90%+ duty cycle, and have a way to see that you are, then no. No new injectors are necessary. You would have to be making some really good N/A HP numbers for that to happen.