This morning I got up to 18.5 again. I wish I could use the 5.2 engine configuation, but everyone says to use the 5.9 that the truck now has, even though the injectors, sensors, and PCM still think it is a 5.2...
Greenie is getting parked soon, I am going to bring the 1976 Dart Lite out of hiding, and get it dialed in properly. It got 18 before, with questionable carb, and normal driving techniques. Low 20's would be exciting, and I would be double the truck if I got the Dart to 30mpg.
