I was just doing some digging and realized that my injectors on my 99 GP GT are not stock. They appear to be 42.5 lbs/hr injectors judging from their shape. My question is, is there any way to tell what brand and flow rate these are? My car is stock as far as I can tell (I've replaced as far down as the UIM gasket). If these are a different flow rate then I must have a tune because the car runs great and is not running rich via the "sniff test". my gas mileage is ~22.5 in the winter and ~23.5 in the summer this, in my opinion, is pretty crappy but that could just be my tendency to have a lead foot.
Picture of injector:
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