It will idle with the choke pushed in. It will idle well until I drive it @ 10 miles or so. I have not looked for vacuum leaks yet. With the electronic ignition, I don't think I have a vacuum advance, but I will look for vacuum leaks. I think idle rpm is 600-750. It idles great in the driveway, but after a short drive it won't. Thanks for the responses and I will check for vacuum leaks.