Should i Change My Fuel Injectors?

i have a 2.0l Eco tec Supercharged engine. i bought a smaller pulley for the super charger (2.8) and im curious as to should i change the fuel injector... and what will happen if i don't?Should i Change My Fuel Injectors?if working should be no problem as fuel flow is regulated by the ECU.
Should i Change My Fuel Injectors?
You can find the answer to that question by taking your car to a dyno with a wideband o2 sensor. If it runs lean, then you need to think about a fuel system upgrade along with something to control the injectors. It will run like crap if you just change the injectors because the stock ECU has no idea you changed them.