Quote Originally Posted by robby3 View Post
When the valves are closed the system creates more backpressure in the low rpm range. This works together with the intake/outtake valve timing. At 3.5k rpm the exhaust valves open and the head valve timing got changed as well. This will provide the best airflow for the power. But will this lower torque with all-time open valves be notable ? I doubt it, because if you need power you'll be above 3.5k anyways.
I'm too lazy to search/research and find out who you are and who you are quoting (copy/paste).

No disrespect, but can you clarify what the heck are you talking about?