Car appreciation... the aesthetics, the engineering, etc

So driving my mini today (998c stage 1) and when approaching traffic lights or stop suddenly, when the clutch is applied the car stalls. Is it that the carbs are tuned properly and just starving the engine? its not that pressing an issue just curious about whats causing it. (solved with having the choke slightly out all the time/heel n toeing on downshitfs)

what carb? Early SU (HS4) carb? screw the big nut on the jet (under the body) up a tiny bit to raise the fuel level
A common enough problem with them
If that doesn't sort it try a slightly richer needle, but once you start with that you will be messing about forever