[Jeff Lee]

I totally agree with Dwight, and it would require a lot of the specs issued by the OEM to be realistic!!! If can recall correctly,I remember the Chrysler 440 and 340 cam specs having something like 240 degrees of overlap and unreal durations specs. The same applied for other makes

If you built an engine with the old Pontiac duration numbers (in the area of 324 degrees duration), I doubt you could even get the engine to start!