An excellent post explaining why and how an engine needs the ignition advance – and how the weights inside the dizzy and the vacuum advance from the carb provide this ignition advance.
https://littlegreenlandy.com/2019/10/20/vacuum-advance-pipe/
information about the MGB and MGB GT classic cars including news and reviews – also updates on repairs, servicing and diy modifications I do on my own MGB Roadster
MGB tips mods and maintenance 