Stu would you care to make comment on the following:

Data c/o Piper cams.

Cosworth Turbo Fast Road Cam
Power Band 2000-6200rpm
Duration inlet=264deg exhaust=264deg
Valve lift inlet=0.340" exhaust=0.340"
Timing 20/64 64/20
Full lift inlet=112deg ATDC exhaust=112deg BTDC
Lift@TDC with clearance inlet=0.034" exhaust=0.034"

N/A Cosworth Fast Road Cam
Power Band 2000-6500rpm
Duration inlet=268deg exhaust=268deg
Valve lift inlet=0.395" exhaust=0.367"
Timing 26/62 62/26
Full lift inlet=108deg ATDC exhaust=108deg BTDC
Lift@TDC with clearance inlet=0.067" exhaust=0.065"

To summarize:
N/A cam duartion is 4deg advanced compared to the Turbo Cam
Valve lift is Equal on Turbo cam and unequal on N/A cam
Valve lift is much higher on N/A cam than that of the Turbo cam especially on inlet
Turbo cam inlet opens and closes later than N/A cam
Turbo cam exhaust open and closes later than N/A cam
Full Lift is 4deg later on Turbo cam than that of N/A cam
Valve lift at TDC with clearance is almost twice as much on N/A cam than that of Turbo cam.

If i get a chance i'll plot them on a cam timing chart so as to give a visual representation of how they compare.