Do you feel that someone needs to be a BMW specialist to work on BMW Webers, or one carborator is like another? I met with a shop here who works only on American carbs, which makes zero sense to me. Thanks much.
My ignorant opinion is that all downdraft webers are essentially the same. The tuner would likely benefit from BMW specifics like the factory idle RPM, redline, displacement, factory hp specs, fuel pressure, all that stuff. Sounds like a good question for Steve.