It was definitely "square edged" when it cut out. Hehe, I may have found the problem <img src="/forums/images/graemlins/shiner.gif" alt="" />. When I was checking the wires and the coil/igniter, the coil wire didn't seem to plug into the coil very well. A little finagling, and it clicked into place. I hadn't driven the truck since then, and today, I decided to take it to work. It never sputtered the whole way. I'll have to drive it more to see if that was the culprit. *if it is, i'll feel like an idiot <img src="/forums/images/graemlins/pfft.gif" alt="" />*