i need to know what would it cost for a turbo upgrade able to hold 18psi of BOOST? what kind of turbo? what specs should i ask for? do i need to change the manifold or get it ported and what should i get ported? also need to know were is the best place to get the turbo from? also what fuel upgrade should i do to my fuel system? put it this way i want my z to run like a rockect.