You could detune the injectors, yes...but what is the point?? Why not go with a properly matched injector/turbo combo, or step up to a modded h2e, and then run your 250cc injector? I will never understand guys running a huge injector detuned, with a smaller turbo. 00rich is running a 200cc hypermax injector, I forget the nozzle size, and a qssb, and putting down mid 500's from his setup, seemingly consistent. Buy once, buy right.
I keep getting the itchy finger to do bigger sticks, but keep telling myself to wait until I can afford to swap the rods out, as I want to do a cam as well.