Minnesota Gov. Tim Walz, the Democratic candidate for vice president, is out with a new video that simultaneously offers advice for how to work on old cars — and warns about the dangers posed by Project 2025. “All right,” said Walz, standing over the engine of the exposed bay of the vehicle. “This thing, old school carburetor. You can always tell something about somebody’s maintenance when how clean their air filter is. Look, to be able to work on this thing, you’ve got a manual. It shows you exactly what to do to fix things on this.” “Donald Trump and J.D. Vance have a manual too,” Walz conti…