oh yeah, look at all the singel kits for the z 32.. oh wait there are none. just custom. like this one from the purto rican race team. this car runs mid 7seconds 1/4 miles.
http://www.z32.org/unsorted/proz32_7_7_run.avi
another one from japan. notice the #5 and #6 exhaust manifolds coming out of the fender wells next to the strut tower.
how about a sr swapped in a z32? a friend is getting ready to do this to his Z.
their was a Z32 that keeped a cima block in the single turbo set up, but major frame modding was done but that car is dead and the block is now in ATL and being TT'd
http://www.z32.com/readerrides/reader56.htm
just a single kit is very very unlikely with the lack of space and the amout of work to fit it. and im sure the 350z will have the same problem.