Which injectors should I be running?

[FuglyGTP]

The dealer said my injectors needed to be cleaned so I told them to go ef themselves. I bought 42lbs injectors for the same price. With a full exhaust (downpipe to tips), intake and a stock ecu, which would run better-- my dirty injectors or my 42 pounders?

I know it sounds kinda dumb at first but I want to make sure I'm not dumping too much fuel into the engine.