was going to have my injectors cleaned and flowed, but as thats going to cost around $100, i figure i may aswell assume they are too small and go straight for an upgrade, is there an easy bolt in upgrade known? or what have others done?

also the fuel pressure regulator i am assuming will need to be changed for a boosted car, is this correct, if so can i just use one off a turbo injected car or is there a more exact science to getting the pressures right?