you dont have enough fuel to run a turbo, even at 4psi.
youll want new injectors that flow more so to keep their pressur eup youll want a fuel pump that flows more tooo, so then you need some form of controller for them, maybe a SMT-6 piggy back would be the way to go for a 3vz.
the piping for a 3vz is a hassle. dont bother if you have an automatic, you just wont find room to get the turbo IN the engine bay. you can fit it UNDER the motor if you wanted to. i wouldnt turbo a stock auto, unless you get the guts of a factory turbo a340e auto or ya gonna be melting that thing quick with boost + gear change
and ill let you search the rest of the parts to turbing-- THE HARD PARTS THAT im going to leave out
if you "just wanna turbo" get a different car.