I've got a 2500 Suburban with the 8.1. I love it but would really like to have more light to light type speed. It's a beast and can haul anything but I can't get it above 2500rpms to save my life. What's the best way to get more speed and power out of the 8.1!

PS. This is a long term goal so we'll pretend that anything goes for now but be realistic!