Clarification on NNBS intake swap

[AFSP1211]

I got a line on a complete NNBS intake with sensors, rails, injectors, and TB for a good price. I've read through a few threads and I'm still not sure of how easy it will be.
I'm already returnless fuel line so that's easy enough. I know I'll need the link from torquerush to operate the TB but is there anything else I'm missing? Most of the info I read was in regards to the 99-03 and return fuel style models and were talking about having to change the injector connections and having to use spacers due to longer injectors in the NNBS intakes. Any insight from y'all would be appreciated. I want to order anything I'm going to need at one time so I'm not waiting on parts to arrive.
My current engine is Flexfuel but I don't know if that changes anything.
Also, for anyone who doesn't think it would be worth the gains: current setup is 11:1 cr iron ls1 with 241 heads, 228r cam, and NP tune. Feels like power is dropping off just a tad in the higher RPM range almost like it's not getting enough air. This is also in preparation for a N2O plate in the near future.
Thanks in advance.