Sounds like the fuel lines remained very hot and only cooled after sufficient fuel had flowed through them to reduce vaporisation.

Fuel line on my much later Roadster (Ford Cyclone engine) is wrapped, maybe that could be an answer.


Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone