I have a set of 12580681 injectors that were supposed to be off a flex fuel truck, and all I have come up with is 30# injector claims. I found another part number of 12580426 that claims they are flex fuel injectors. Do I have regular injectors? they take an EV-6 plug. Thanks

 

the part number you posted is the same injector/ its rated at 30.X lbs at 58psi off NNBS .

You need #12594512 / ACDELCO Part # 2172436 , they are dark blue.

 

thats good info. thanks!

 

12580426 so what about this number?