[KTL]

Yes the same applies to the Weber 46. The 46 is basically a just a bored-out 40 carb.

That's a big chunk of rubber! Definitely get some inline filters just ahead of the carb inlets and of course its time to investigate the source of that chunk.

I'd also recommend the PMO fuel bars on the carb fuel inlets. At each carb they eliminate two potential hose leak points and also a section of rubber fuel line. You can also add fittings to the rearward ends of the PMO bars and join the two carbs with a section of hose. Of course doing that adds back more hose/leak points! But its not a bad idea to do to get some crude circulation between the two carbs on a deadhead-type system.