Pedals that stack with the Dunlop JHM7 Jimi Hendrix Univibe Chorus/Vibrato

Walrus Audio Ages

Walrus Audio Ages stacks clean boost on top of the fuzzy already here

Aguilar Octamizer (Bass Octaver)

Run fuzzy into Aguilar Octamizer (Bass Octaver) for more octave on top

Electro-Harmonix Stereo Memory Man Vintage

Keep Dunlop JHM7 Jimi Hendrix Univibe Chorus/Vibrato's modulated voice out front: Electro-Harmonix Stereo Memory Man Vintage goes after Dunlop JHM7 Jimi Hendrix Univibe Chorus/Vibrato in the signal chain so its analog warmth voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Pigtronix Echolution

Run Pigtronix Echolution after Dunlop JHM7 Jimi Hendrix Univibe Chorus/Vibrato in the signal chain, clear of Dunlop JHM7 Jimi Hendrix Univibe Chorus/Vibrato's own gain stage — goes in the amp's FX loop (or last, into a clean amp)