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Steve,Sorry for not replying earlier. I have been building my new winter cabin this summer and it took the overhandYes, I have glow ignition on my engine for now. My rational is to get it running well and then potentially put spark ignition in as a challenge. It is really tight to fit.And actually - I have a runner !! I made my first attempt on uploading a youtube video. Of course I had the camera 90 deg wrong when filming, I guess I am not an expert. Also never been on facebook or similar so I hope I did things right on the upload. The link to my first really sucessful run is on the link below http://www.youtube.com/watch?v=ibPkXC8fBV4I have found my engine is less sensetive then I thought wrt the mixture settings, I can get it to idle well and accelerate fairly ok without much trouble with my carb. I have found however that it is more sensetive to varying compression being cold/warm than I was expecting.I have been trying out my cast iron rings and also viton o-rings. I also forgot how many times I have looked for leaks in the valves..when I accidentily mixed the valves (dropping the box on the floor after grinding them to the seats) I never have been able to get them to seal perfectly Anyway, it runs and with your excellent build it won't be long until yours are up and running as well!Thank youLars