Stock accord sedan

[Olie]

  hello my name is Olie and i have a 2004 accord sedan bone stock besides cold air intake, 275cc injectors and an ebay exhaust and cat. I have 2 questions? After installing the injectors when i floor my pedal it bogs out like it's dumping to much gas and it won't take off good. 2nd do i have to tune the computer and if so, how to do that. I see that hondata doesn't make it for the a4 version of the k24's. Oh and my car is the 5 speed automatic.