My GP Spitfire used a switch like this
Sold
Just spoke with Cameron at Ivey. Apparently the new forge is concentrating on blocks with expectation of valve covers at a later date.
look up "backup alarm switch". Typically a spring wand operating a micro switch.
Ivey Engines
Brake switch
My GP Spitfire used a switch like this
Beck/Arnley Stop Light Switch - 201-1105 from Amazon
Had a small tab off the pedal in the linkage Ken Lawrence 05.07.24, 4:29 PM