Piper are normally stamped on the end with the number, look up pipercams.co.uk
and it is al there on the webbie, ie there cams not std ford ones, as a very rough rule n/a cams will be slightly longer duration esp on inlet but slightly lower lift, but not a hard and fast rule by any means.
You could use one in place of the other(n/a and turbo) as there is usually so little between them.
tabetha