What RPM do you shift a n14?

For a Cummins N14 engine, it's generally recommended to shift around 1,800 to 2,200 RPM, depending on the load and driving conditions. Shifting within this range helps maintain optimal engine performance and fuel efficiency. However, specific preferences may vary based on the truck's gearing and the driver's style. Always consult the engine's manual for the best practices tailored to your setup.