A similar question:

I have well geared lvl 70 druid and recently aquired a friend's account with a level 60 priest that hasn't been played since TBC came out. What is the fastest way to level the priest?

Can I tap the mobs with the priest, and then down them with the druid out of party? Does this redux the exp gain? I've heard of 70's powerleveling 60's in hearthglens where the 60 mage aoe taps mobs, and 5-6 lvl 70's burn them down.

I know i can heal the preist out of party, but he seems more mana limited than heal limited and doesnt seem like it would speed things up much. Sure innervate helps, but its a 6 min timer.

I guess I could try downing higher lvl mobs and wanding the snot out of them when the priest goes OOM. Seems like killing lower level MOBs would take less time.