Injector Flow Variation

[Greg Finnican]

What an injector's flow rating is and what it actually flows can vary 
quite a bit.  When we ultrasonicly clean them it does not always bring 
them back in line.  How much of this is manufacturing variation?  After 
seeing the variation in injectors I can'nt imagine using an untested set 
in a performance application - certainly not a used set.  I would like to 
hear others experience.  greg at atlantic-motorsports.com