thanks for that,
Do you know if there was ever an A14 used?
reason for looking for this info is i'm making plans to build a race car but i need to keep it in with regulations but want to be able to get the biggest engine i can in it but keeping it under 1500cc and try and keep the weight down. The engine can be anything as long as it was used at time of manufacture but can be road/production or an actual race car.
So far i know they used
A12, L14 and L28(samuri race in UK)

Yes, FIA homologation was for the A12GX high-comp twin-carb engine.

Although not an A-series, they raced L16 engine in the B110, and sold them with L14. See PB110.

Does anyone know if they used any other A series engine in a 1200? Either road or competition but has to be of period IE used when b110 was in production. It doesn’t matter what country it was in any links printed info would be fantastic.