Chef:
Assuming that the Aase flywheel/Tilton clutch was setup properly, the noises your friend hears are normal for these triple-plate 5.25" race clutches.
These are strictly race car parts and you can hear all the the tranny noises as well as the clutch plates rattling at low engine speeds due to all the combined backlash that is not being dampened in any way....
IMHO, this stuff is totally unsuitable for road use and I would never sell that setup to someone with a street car,.....