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, techs and specs – also updates on repairs, servicing and diy modifications I do on my own MGB Roadster. I am no expert on these cars – just a keen enthusiast – but I hope these posts will be of interest to others with a similar interest
MGB tips mods and maintenance 