So, I got the truck back after getting new heads and EGR cooler. And when I am driving at around 60 MPH and give it some gas and it tries to downshift but it just seems like it studdars or almost cuts out.... Also if I am cruising at around 65 for a long period the truck cuts out. But when I put the SCT on the truck it runs perfect????????? I am wanting to run the truck stock for a bit but I cant drive this thing like this.... They were supposed to reflash the computer when they did the head job. Anyone had anything similar to this? Or is this where the money trail starts? All help and suggestions appreciated.