Didn't mean to be a smart arse, just cheeky. Sorry.
Besides, you have injected engines, so no venturi.
Continental engine operators manuals & Cessna POH's are about the worst combination you can get. They really don't make it easy to run the engines optimally. And a turbocharged engine providing cabin pressurisation as well as engine boost works pretty hard in the flight levels where the engines can be cooling limited as well.