I have a 91 z28 5.7L, and I have to get new injectors. I need to know what the lbs./hr are on the stock injectors. One place said it's either 21 lbs./hr or 24 lbs./hr. Someones else said 22. How can I tell? Is there a way to tell by the VIN #? The garage where I have it at quoted me at over $1K just for 8 injectors. I can get them on line for $300 - $400, I just need to know the lbs./Hr. of the stock ones that are currently in there. Any help would be greatly appreciated by both myself and my wallet.

 

The stock injectors are 22 lbs/hr.

 

Stock injectors are 21.5lbs, the best replacement's are ford pink tops they came on 01 up mustang GT 4.6l's And you should be able to get a set for less than $250 new!