The X275 category is highly competitive and it requires a lot of testing and tuning to ensure the combination is running in tip-top shape. For Michael Nawes and Kenny Hubbard, it made sense to book a trip to the FuelTech USA headquarters and utilize the Mainline Hub Dyno to accomplish such a task. The goal was to learn more about the FuelTech ECU, work on the tune-up for the large displacement big-block Chevy, and test a variety of changes as they aim to push Nawes’ Fox Mustang into the front of the field.