The clutch was originally set to 120, PSSL increased this to the 180 or mayby 165 from memory.
If it is slipping or leaking across the quad seals sorry to say the plates will be buggered already.
With this clutch it is imperative care is taken when switching on and off, give it plenty of time to energise/de energise, and flush the case through on a very regular basis, T46 oil.
Good luck its a crap job re sealing and changing plates.
By the way once the quad seals come out they will not go back, you need new ones every time.