My 340 came with a 3310. It never ran well at all. It was always rich, and I had to remove the plugs at least once a week and clean and dry them to get it to start. I bought the 670SA, and it never ran so well! I haven't looked back since. My 3310 is still sitting in the garage. It needs a good rebuild, I believe. I don't believe I will ever reuse it, though. Maybe I sould sell it?
