the st170 TB wont fit. i was using one which was bored out at a machine shop with a bigger butterfly fitted.
i have skyine or subaru injectors in a silvertop fuel rail on a zetec turbo (previous owner wasnt sure, but they are purple) but you need the zetec cam seals (pennies from ford) and the injector multiplugs from whatever car they came from, spliced to your fuel rail loom.
dont get huge size injectors, you just need the next size up.
you need mapping ASAP, it will be hugely down on power for what it should be, drinking fuel, and you will be damaging that fancy head (i saw the state of the valves on a zetec head which had been leaning out - not pretty!)