When you are moving if you pull up your character inventory screen then click the tab that says stats - there is lists your velocity. Any mount becomes as fast as the fastest one you have. But they start with: Immobile / Stationary / 0 Velocity / Rooted Very Slow / Slow1 / 32 Velocity / Just barely faster than unmodified Running Slow / Slow2 / 43 Velocity / Slower than SoW Moderate / Run1 / 53 Velocity / Faster than SoW Fast / Run2 / 64 Velocity / Faster than FoE Very Fast / Fast / 75 Velocity / Almost max Bard speed http://everquest.allakhazam.com/wiki/eq:Items_Mounts
To see your mount speed's velocity open your character sheet & click the stats tab, on the top left quadrant of that page below your haste value you will see your velocity, move on your mount & you will see your current speed there.
Found that old post : Rope Bridle (Horse) or Small Drum (Drogmor): +7% - Horses are sold in Bazaar (Luclin) Drogmors are sold in Gunthak (LoY) - 8,400pp / 9,540pp (Quest returns Bag of Platinum Pieces - 6,476pp sellback) Selo's Rhythm of Speed: +10% (fixed {before percussion modifier} usable indoors) - 25th lvl Bard song. Purchased with Adventures Points, LDoN expansion - Various drums should modify the bonus from +18%, normal drum, to +34%, War Drums of the Rathe Innate Run Speed (AA Ability) RS1: +10%, RS2: +20%, RS3: +30% (fixed) - 51st lvl required, one AA point per level, Shadows of Luclin expansion - This is a permanent increase to your base movement speed, indoors or out Spirit of the Shrew: +30% (fixed, usable indoors) - Purchased with Adventure Points, LDoN expansion - Single/group versions -- SHM 29/34 - DRU 34/39 - BST 39/44 - RNG 44/49 - Feral Pack (group) DRU 52 and Feral Form (self) RNG 64 combine this spell with wolf form, LDoN expansion Journeyman's Boots (rclick effect): +35% (fixed) - Quested, nodrop (droppable on FV server) Original Everquest (no expansions needed) - Jboots are clickable from inventory and are instant so you can cast while moving Traveler's Boots (rclick effect): +35% (fixed) - 5,250pp, nodrop (presumably droppable on FV server) Original Everquest (no expansions needed) - Sold by a NPC vendor in the gnome mining town in Solusek's Eye (SolA) dungeon located in Lavastorm - Faction required unless you have racial/class Sneak ability or faction modifying spells - Clickable from inventory but NOT instant like jboots. Cast time is 1.5 seconds Grease Injection (rclick effect): +40% (fixed) - Only available to Gnomes via tinkered armor - Available to Gnome plate classes at 20th lvl on Clockwork Watchman Greaves - Available to Gnome rogues at 45th lvl on Clockwork Shadowwalker Leggings Swift Journey (AA ability): SJ1: +40%, SJ2 50% (fixed) - 61st lvl required, Innate Run Speed 3 required. Gates of Discord expansion - 5 AA points for SJ1, 10 AA points for SJ2. SJ2 may have higher level requirement Leather Bridle (Horse) or Drum (Drogmor): +43% - Horses are sold in Bazaar (Luclin) Drogmors are sold in Gunthak (LoY) - 27,300pp / 31,500pp (Quest returns Heavy Bag of Platinum Pieces - 21,047pp sellback) Illusion Scaled Wolf: +45% - 44th lvl Enchanter spell, nodrop, purchased in PoK library. Planes of Power expansion - This spell is self only barring the AA ability Project Illusion (62nd lvl PoP AA) Spirit of Wolf: +55% - Single/group versions -- SHM 9/na, DRU 14/39(Pack Spirit), BST 30/na, RNG 30/na - 34% (L9) to 55% (L50) - Shaman made Blood of the Wolf potions have this effect - 39th lvl SHM spell Spirit of Bih'Li is the same speed as Spirit of Wolf but adds an ATK bonus Wolf Form (self only): +55% - DRU 24, RNG 49 - 42% (L24) to 55% (L50) Spirit of Eagle: +60% - DRU 54, RNG 65 - 57% (L54) to 60% (L60) Share Wolf Form: +60% - DRU 39 - 49% (L39) to 60% (L60) Greater Wolf Form (self only): +60% - DRU 34, RNG 56 - 52% (L34) to 60% (L60) Form of the Great Wolf (self only): +60% - DRU 44 - 57% (L44) to 60% (L60) Share Form of the Great Wolf: +62% - DRU 49 - 59% (L49) to 62% (L54) Flight of Eagles: +65% (fixed) - DRU 62 Form of the Howler (self only): +67% - DRU 54 - 62% (L54) to 67% (L65) Scale of Wolf (fragile*): +70% - Single/group versions -- SHM 24/52, DRU 29/53 - 57% (L24) to 70% (L50) - *Fragile means the buff will drop if you attack (or riposte an attack on you) or if you cast a spell - This spell is seldom used because of the fragile restriction Form of the Hunter (self only): +72% - DRU 60 - 70% (L60) to 72% (L65) Silken Bridle (Horse) or Large Drum (Drogmor): +78% - Horses are sold in Bazaar (Luclin) Drogmors are sold in Gunthak (LoY) - 60,900pp / 65,100pp (Quest returns Big Bag of Platinum Pieces - 46,952pp sellback) Chain Bridle (Horse) or Giant Drum (Drogmor): +114% - Horses are sold in Bazaar (Luclin) Drogmors are sold in Gunthak (LoY) - 95,550pp / 103,950pp (Quest returns Huge Bag of Platinum Pieces - 73,666pp sellback) Spirit of cheetah (self only): +115% - DRU 24, SHM 24 - 99% (L24) to 115% (L40) - This spell lets you sprint for 48 seconds but takes 10 minutes to refresh Holy Steed/Unholy Steed (AA ability): +150% - 59th level required, 5 AA points, Shadows of Luclin expansion - 6 AA spent in General (L51) and 12 AA spent in Archetype (L55) required - Paladin/Shadowknight Summoned Horse. Paladin horse is white, Shadowknight horse is black - This effect instant and the mount can be summoned while moving Ornate Chain Bridle (Emperor/Seru Horse): +150% - Emperor drops White, Seru drops Black, nodrop, Shadows of Luclin expansion Selo's Accelerando : +156% (capped) - Bard song -- 20% (L5) to 65% (L50) WITHOUT A DRUM (or other percussion modifying item) - Various drums improve the bonus by a multiple of 1.8 to 3.4 up to the 156% cap