couple of questions before purchase

[atvfreestylekid]

I plan on putting bigger injectors in my truck in a couple of months or so. Can i get an fu2 and have it burned for factory injectors for now and when i get them installed, burn it for the bigger one? I have bad injectors but work 7 days a week so no time to install them at this time. But i would like to have the chip here when the injectors come in but get to play with it until they come in.