On all my crossfires I have installed a manual fuel regulator and fuel filter, i have found that with increased fuel pressure,
you do not need larger fuel injectors, With my V8 crossfire i ran 10.55 @ 132mph,,and with my V6 crossfire street tires, and no posi traction 12.008 @117.
If u go with a manual fuel reg. remember you must have a return line. jim