Some cams for the Pantah/F1 engine.
NCR7; found with, and without holes:
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cams NCR 7.jpg [ 16.17 KiB | Viewed 1402 times ]
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cam NCR7 a.jpg [ 18.4 KiB | Viewed 1402 times ]
GCM; usually with holes:
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cams F1 GCM 1.jpg [ 25.54 KiB | Viewed 1402 times ]
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cams F1 GCM c.jpg [ 58.97 KiB | Viewed 1402 times ]
Montjuich, and listed as original Pantah race cam according to Falloon, usually without holes:
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cams Mont b.jpg [ 20.01 KiB | Viewed 1402 times ]
Finally, ORSP also sells "F1" race cams. Perhaps I will add a photo later; now installed in a working set of heads. They quoted timing like the Montjuich, I think. Their timing and lift suggests something like all those above.
MikeV