yes, and the 4 hole injectors really worked well with my heater-core based intake air heater. In my 4.7L Dakota Quad Cab, with both 4-hole injectors and that heater, I could get fuel economy approaching 21 MPG on the highway, around 70 MPH, with just a chin spoiler as an aero mod. In-town economy was around 17 MPG, IIRC.
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