I'm gonna rebuild my carburator and see if that fixes the engine stumble that I've got at an idle, and when I got hard on her when she is cold. If not, I'll be tearing into my distributer again. I've got a 4 day weekend on my hands, and nothing better to be doing
Another possiblity is that I haven't got enough backpressure, so I'm thinking about buying a 3.5" - 2.25" turndown for my muffler to see if that helps it out at all...