Do you have a 90mm intake manifold to go with it? Current & Caspers both sell a simple plug in adaptor. The LS2/3 TB's have the TPS & actuator motor integrated into the unit with one interface. The wire diagram is easy.
Here are links to the diagrams on LS1tech & CF:
http://www.google.com/search?q=pinou...e7&rlz=1I7DKUS