I finally got it outside today, first up was to check everything out real well, I have done nothing to this engine since putting it on this airframe. First up was to change the plugs for some fresh one's, here I learned Valach called for a gap of .4mm, had to call AMR on this as that seemed very small to me. But .4mm was correct so that's what they were set to, filled the tank with fuel, then hooked the ole bird up to the laptop. Everything was a go so with four flips of choke on-POP, two flips choke off and it's purring like a kitten, well almost. It was just a tad rough throughout the rpm range, I figured the new and proper set plugs changed things a bit. So I commenced to re-tune it, it did not take much to have it running smooth as silk, as a matter of fact I think this is the best this engine has ever run. It is turning the Biela 32x12x3 right around 41oo rpm, idling right around 950, and max temps were 240°, all on the ground. Man I do love this engine, I let it sit until ambient and it starts on the second flip. Did that three time's in a row so I loaded it in the trailer and will be heading to the south house tomorrow, if all goes well I may even hit the field later in the day.