Port injection gives you the advantage of being able to trim fuel, cylinder to cylinder which unless emissions is your concern is not much of an advantage for the average user.
Only if you have sensors on each exhaust post - adding even more cost to port injection.
Actually no. Computers and O2 sensors are fast enough now that with engine position sensors the ECM can tell which exhaust pulse comes from which cylinder by monitoring the O2 sensor data.
That's how the ECM in new cars can throw a code to tell you which cylinder is misfiring.
Kevin
