If it's any use I always do 120lbft on the stud and nut kit with engine oil on studs, not swimming just damped on.
I do it in stages of 30/60/90/120, with a group a YB 0611, gasket allow to rest a minimum of 4 hours and retorque as will be looser.
YB 0611 is now 27380 00 from Victor Reinz.
tabetha