As Tim H commented, cars must be driven!
Slightly confused by the sideways mounted SU, so it functions as a down-draft carb. I didn't think SUs could be mounted that way, and still work properly.....anyone know for sure? Anyway the carb isn't period, more 1950s.
Nothing in principle to prevent the carb being mounted sideways, biggest issue is the float chamber would need its mounting modifying to turn it 90 degrees and the jet fuel line from the lower of the float chamber extended so it can reach. They turn through a few degrees anyway to allow for different installations but nothing like 90 degrees. The other issue would be the oil in the dashpot which with the dashpot plunger provides piston damping and an element of accelerator pump (the brass ferrule lift gives an initial enrichment on snap throttle openings).
If they are smart enough to mount the carb in this way they are clearly smart enough to solve those issues, pity the photos shield the float side of the SU. Stunning car isn't it.
