I think because of the potentiometer bizzo, this may be a problem. Unless it was somehow attached to the pedal shaft.
I circumvented the issue with a very high tech, patent pending, length of 19x19 pine, suitably dressed of course. Of the correct length, with a groove in one end to mate with the pedal shaft whilst the other end pushes up against the firewall/panelling. Rev range available from 2000 to bejesus :eek::twisted:
I would attach a photo, but, as I said ... it's all very hush hush due to the patent attorney's requirements ... :p
As for floor vents, they're also very good at stirring up all the dust under your feet :cool:

