Jet location on a turbo Focus...

[JohnA]

My first thought would be a nozzle at the 90degree bend of the red pipe.
If that were aiming right at the middle of the curve, with air rushing in it would probably be spraying straight into the intake, which would then split amongst the cylinders reasonably well.

Best of all of course is port injection, avoiding all turns and ensuring perfect distribution, but that is more involved.