this is covered in the FAQ but you typically follow the rule of thumb, keep adding more timing until it kncoks, then take out 2 deg
using datalogit you can achieve this quiet easily by using the temp correction on the hand controller to shift the entier tune up say 5deg
plod around and see how much kncok you get, if its ok, then set that +5 onto the whole map and save the tune
then drive around with knock map watch and back out any cells manually that kncok around 20-30
your typical knock levels should hover around 10ish
this meanst there is enoguh timing in it to make it work hard enough and knock a touch
but take in mind if your tuning it aggressively now, when summer hits, it may knock more, so keep that it in mind