About This File
This is the base tune I've created for F450 Fummins. This is a special towing tune. His truck is a F450 Ford with a ISB Cummins. The Towing weight is roughly 36,000 pounds in which I'm designing for here. He's planning on towing a heavy 5th wheel RV. This is just the base tune to get started and will require some tweaking still.