http://www.fuelinjection.com/portinj.html

"The 57L injector is sized to deliver approximately 4.83 milligrams of fuel with a 2.5 millisecond pulse or 23.92 lbs per hr at approximately 43.5 PSI."

The quote can be found near the bottom of the page under 'fuel injectors'

Is this true, because i always thought it was 22 lbs?

 

they are 22# they flow 22# @ 37 psi with the vaccum on. when you floor it, vacuum drops to 0 and pressure goes to 43.5 and jumps to 24# that's why you get an adjustable fuel pressure regulator. that way you can raise the pressure to gain more flow out of them. to a point.

 

i thought the same thing as gearhead, thanks for clearing that up