nice graphs Shaggy. 82 GT it's safe to say that when people talk about cam duration they should be on the sam epage. I tell people I'm running 240* dur and they say well thats not alot. Then I tell them it's at .050 and they say OH! Manufacturers can advertise anything they want. The tell all is what is measured after the valve actually opens up. That's why the standard is duration at .050