and get something a little newer and more efficient. I would look into a turbo setup designed around the gt28r turbos.
I would also forget the nismo 555cc injectors if you're referring to the old style injectors. Get either the 615cc or 740cc injectors and the 300 degree rails you'll be happier in the long run. Plus then you can get the 95+ efi harness and eliminate the ptu sub-harness. The only catch then is getting a new style cas.