Thanks Austen,

I had found that flow test before, and view it with some disbelief.
I do not know what flow bench calibration was performed by CNC Heads,
and they flow the head with a 100mm bore adapter - I know of no CVH that has
a bore size of 100mm. This would certainly inflate any head flow data.
I guess "bigger is better" as far as published head flow goes.

Guy Croft has done some flow work on a CVH head, and found the unported
stock port to flow 83 cfm, well below CNC testing results of 95.5 cfm.
See http://www.guy-croft.com/viewtopic.php?f=2&t=1377

My unported flow test here agrees with the Guy Croft measurement.
My flow tests have been done on a calibrated SuperFlow 600, and a SuperFlow 110
to compare.

Does anyone have their own tests and not published testing?

Cheers