Amal carbs

I've just taken the carburettors off the Bonneville. They are Amal 376/204s,
which are "chopped" Monoblocs and are fed by a remote float bowl.They were particular to the 1958 model and another rarity. Luckily, they were already on the bike, so that's another thing that I don't have to find ! I shall  take them to Martin Bratby, at Cannock- he does brilliant refurbishment on 
carbs and I've used his services before- a real old school engineer ! cylinder head off soon, which is another rare beast, as I'll explain in a future Blip