Little achievement I decided to do before SL, 152% base speed Warrior set to do old content! Almost every item is haste (for Longstrider) and +speed. Could get around 165% max but
Nitro Boosts - Spell - WotLK Classic
A Guide to Every Mounted and Passive Movement Speed Increase in Classic : r/classicwow
WoW Movement Speed - List of all speed boost items | RaidLine