were made in italy when production racing was hot here in the early seventies
futura cams dont have good reputation, there are well documented cases where the lobe shapes were totally wrong, causing terminal engine fatalities
the end bearings were an odd feature of these cams,
get a proven megacycle and dont waste your time/money/good engine parts on this
In any case, to me it looks like a 400 cam rather than a 500's, but not sure...