Fueling & Injection - Has anyone done a LS6 W/rails & injectors swap?

I have just installed a LS6 intake on my 2000 ws6. My question is has anyone done a complete swap with the intake, fuel rails, and injectors? I am wanting to install the 28 lb/hr injectors from an 02 to my 00. What will I need to do? If it needs to be tuned can I do it with my hand held Predator?

I did this swap with no info and everything seems to be working fine. No tune but car still feels really strong on day one of install!