Don't waste a bunch of time messing with that - if I go to the trouble to try characterizing the injectors I think I'll find a 4 cylinder fuel rail at a junk yard and build my own test bench. I'm just not sure it's worth the trouble. A new set of 42lb Ford Racing injectors with good data is only $400. The only reason I'm going to this trouble with the ones I have is because I know they were working pretty darn well before summer.
At the point I had to stop working on it the drivability wasn't that bad save for slightly lazy cold start (at hot ambient) and falling on it's face at hot idle. If my hot idle is still crap when I revert the last couple changes I'll probably switch back to the factory 25lb injectors and see if I have better luck.
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