4 Barrel FI kits for a /6 Turbo setup

So looking at this kit right here
http://paceperformance.com/i-221610...fi-4-600-hp-basic-kit-matte-black-finish.html


and using an Offy manifold, which pieces\control box under the hood would need to be removed or maintained? I've shot the company an email with the same questions, just waiting for a response now. Thanks for the help in advance.