Please save yourself the time and effort of upgrading your supra.
The NA version wasn't made to run a turbo, it doesn't have half the performance gaskets and internals that the TT version has. You've got a looong process ahead of you if you go ahead with this and you wont be able to run much more than 450hp without risking damage.
The injectors.... yes you can install them.
you'll need to change the fuel rail and fuel pump too and re-adjust the ECU or you'll see a drop in performance and 4 mpg.
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