I owned a 600hp 300zx years ago. Turbos are a very tough custom install if you want it done correctly. Lots of custom plumbing, waste gates, intercoolers, Blow-off Valves, bigger injectors,Boost controller etc.. Even when installed getting the right A/F and making the engine strong enough to hold the boost will cost mula $$$. You'd be better off getting a supercharger, they are more reliable and easier to set-up and upgrade. Just my 2 cents