Les, as I said, the factory "published data" is the shop manual power curve charts, a "redline" isn't just the point beyond which the engine may explode, it's about efficiency
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics