This is what I read "the engine is tied 1-to-1 to the tranny by the clutch and it is a physical impossibility from our gearing to have the engine at 500rpm in 5th unless the clutch is disengaged."
but you meant "the engine is tied 1-to-1 to the tranny by the clutch and it is a physical impossibility from our gearing to have the engine at 500rpm in 5th at 100mph unless the clutch is disengaged.