8-3/4 clutch type Dana power lock

picked up a Brand New after market 8-3/4 clutch type power lock unit at a swap meet.did a rotating torque check and found about 90 ft/lbs rotating .
i am familiar with stock Chrysler 8-3/4 power locks and with new Mopar clutch kit installed the rotating torque is always around 190 - 200 ft/lbs.
i took the unit apart and found out that the clutch pack was assembled with only one tabbed Bellville spring (curved plate ) and stacked the same as a Dana 60 powerlock - curved plate against the inside of the case half.
stock Mopar clutch kits have one tabbed Bellville spring and a curved splined plate that stack together which would increase the preload.

what i want to know is will this unit work OK as is with 90 ft/lbs preload or what should the minimum rotating torque be for proper function .

i know Cass reworks his after market units with shims -- maybe he can chime in as to what he sets his units preload at -- if its not a trade secret, lol.
thanks in advance