Oh the memories! One of my first jobs was driving a tender truck for the local fertilizer plant. The truck had a Detroit 2stroke and a 7spd straight stick. The owner taught me to drive by this explanation. “Mash the throttle into the floor, when it sounds like it’s going to explode, let it go another 1500rpm, then shift”. Man I loved the sound of that truck! Thanks Jeff for bringing that back to me.