ORIGINAL: bigal126

Good news! Then I'll levave the cam alone. Boy I didn't want to open her up again. Wildcat YS 20/20. The regulator was about 3/4 turn above the housing before the new parts went in, now close to flush, maybe a little higher. I flew the plane with the HS at 1-1/2'' turns out, but before the rebuild 1-3/4 turns. BTW, I purchased the engine used and didn't touch the settings other than the HS needle. Only one flight since the rebuild, but it flew tremendous. I'll check the regulator adjustment next week. That's the hardest thing for me to get right. It's set correctly if the engine holds a steady 4000 rpm - is that right? She's' rich if the 4000 rpm drops, and lean if the rpms surge up and down at 4000. That's what I read at least. I think other than that, I'll just fly it as long as it gives a nice smooth smoke trail and idles good and continues to act and sound smooth. So far so good. Top end is too much for me anyway. Hardly ever go WOT, my flying skills can't keep up with what's happening at those speeds. Plane will come home in a bag for sure if I try to push it. Thanks for the input.