As JT said
Ford does not calibrate ANY of their meters for a certain sice injector
Its the aftermarket meter manufactures that started that whole meter
to injector size calibration concept.
Here are a few brief thoughts to help one conceptualize
Meters are all about air flow ... NOT ... injector size :Word:
Lets use our beloved 94-95 year model Stangs as an example or
point of illustration
Ford built a meter that could handle the airflow of a GT Stang
Ford then built a Cobra Stang with larger heads and a few more
go fast parts which produced more horsepower
Of course ... more hp produces more airflow and more airflow
necessitates the need of more fuel
Here is the simple part of the whole GT/Cobra meter/injector thing
The meter ... which is EXACTALLY the same meter on both GT & Cobra
That meter is capable of handeling the additional airflow of the Cobra
The tiny 19# injectors are not
The jest of it is ... Ford did a bit of re-programming in the Cobra pcm by
changing the size of injector from 19 to 24
Now ... I've already told more than I know about it
but
Maybe that can help somebody out there in Stang Land
Grady