Hiya Phil. What a great album! Loved it since it's initial release in 1967.
You got me thinking about it again and am relistening it now.
I had a search on the web and even the 50th anniversary release [on white vinyl, ATCO label 2017 release - https://www.discogs.com/Vanilla-Fudge-Vanilla-Fudge/release/10585064 ] has no bonus tracks.
I'd have thought there possibly would have been some outtakes from the recording session but if so, they are either lost [studio engineers often reused mastertapes, recording over previous stuff, as the big reels of 3/4" wide tape were expensive] or whoever has them is keeping very quiet!
However, after an extended search I did find this - https://www.discogs.com/Vanilla-Fudge-Box-Of-Fudge/release/2219342
Without physically having the box set [it's no longer advertised on the rhino web site] I can't tell if there are any o/ts from the 1st album on it, but the 4 album box set is shared on soulseek, so I'll get it sooner or later to listen to.
PS. Here's a good biog of the band - https://www.amoeba.com/vanilla-fudge/artist/141692/bio