MPI 16v injector replacement

[zukitrek]

Fix if all my emission/sensors/fuel system components are in proper tune and order and:
1-not having Rolling resistance too high
2-avoiding Poor Driving Habits
3-a not too heavy a car, no 1000 lbs of bricks loaded in the cargo area? nor pulling a heavy trailer?
4-did not drive to the top of any high mountain and expected High MPG on the way up
5-not driving over 3/4 or 75% throttle all the time?
6-Done in flat open road? (not my reality here but..)

In other words I would get those 19-28MPG range?

Thanks!!