LSx Valiant Build. Take a look inside...

So add a turbo. Maybe a pair of them.
Agreed, looks like a whole lotta room to fit up some tubing and a pair of huffers. Will have to keep an eye out for the LS350Z car.

In the gen 3 hemi swap there is an aftermarket swap part called a chip killr. Its a new timing cover that eliminates the crank and cam sensors, and adds a cam driven distributor geared in place of the cam sensors shutter wheel. That along with a carbureted intake manifold and you can completely dump the electronics on a 3rd gen hemi.