New question. When I start the engine and let it run a bit then go to full throttle it has a crazy rpm peak ( about 9100 9200 ) ! After turning the needle out and then leaning it , I will usually get 8750 tops and 5 - 7 clicks don't seem to do much one way or the other. As far as the low needle goes can anyone tell me how many turns out is typical. I started at the recommended 2 turns and leaned it to around 3. Still OS-F plug ,VP 20/20 fuel, APC 16x8, Not cowled.