its the dammn webers(Italian ones too).
They burn cars down! (see what I did there?)
The longer I'm on this site, the more I believe that I'm like a Neanderthal: a highly evolved hominid on the leafy end of a horizontal branch that leads to nowhere.
The above quoted statement from barncobob as well as, "I won't put a CB engine in your car, beacuse they have Webers and Webers burn cars down" from the largest manufacturer of replica speedsters in the world, really does speak to the mechanical anxieties of the great majority of potential (and actual) buyers for these cars.
Simply put, an air-cooled engine needs more care and feeding than the average buyer has the ability or desire to give it. I've got Dellortos, and I run a big fuel filter right after the electric pump up by the tank. I almost never plug idle jets (one every couple seasons?). But when I do, my CHT gauge tells me which one it is before I ever leave the driver's seat. I'm cleaned out and back on the road in 5 minutes or less. It's easy/peasy, because I've got an IM with a wide engine compartment, DLRAs with idle jet access from the top of the carbs, CHT gauges on every cylinder to tell me where to go, and sync-link so I "set it and forget it" on synchronization. Probably most importantly, I have a bottomless well of will to learn how to tune, and a love for the antiquity of an analog engine. In the absence of any one component of this stuff, a guy goes through barncobob's or Lane's frustrations.
I used to think that the world needed a nice stand-alone EFI/crank-fire ECU set-up for a Type 1, but I think that we've passed that point. The hobby seems to want an affordable Subaru flat 4 Type 1 replacement. If it all came in one handy package, and bolted up to a Type 1 transaxle, and wired up with a hot, a tach wire, and a fuel line, I think evolutionary dead-enders like me would be obsolete in 5 years.
I wouldn't mind that so much. ECU-controlled Subarus being the default engine might make the hobby more accessible for non-gearheads.
It might even end the need to make silly statements about particular carburetors (Webers) that are pretty universally acknowledged as the high-water mark (Dellortos are just better Webers) for what is possible to achieve with carburetors.