ZF graveyard solo in less than 20 minutes by my lvl 44 mage alt. I started this at lvl 42 and it's easily the fastest possible way to level up in Classic WoW. The clip is unedited to show a full graveyard clear run from start to end, except that it's sped up to 1.25x from the original to not make it too long.
You'll get between 120k-150k exp per hour if you do 20-minute runs (130-160% of a full level), depending on if you want to loot the corpses & graves. Gold is very decent for this low level, as it averages out to 35g per hour just in raw gold loot and vendoring all drops, would possibly be more if you'd sell the loot in auction house.
For your gear, you'll want to focus on having as much intelligence and stamina as possible, and as you can see from my gear, it's nothing special - meaning that you can also start doing this without having any great equipment. Having a mount is a must, and movement speed enchant on boots can also help you in kiting. Having more int will make this easier / faster, as you can use Flamestrikes and Arcane Explosions instead of only Cone of Cold if you have a bigger mana pool.
It's very easy to do once you get the hang of it - note that I'm playing on a constant 300-350 ms ping, so it'll be a lot easier if you have a normal ping around 100ms.
Server: Arugal, Oceanic.
Playlist: http://gamefun8.com/game-video_gncZfd...Channel: Darthyell