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I recently bought an iqr, and the whole jetting thing is new to me. The person i bought it from has the timing set on E, and was runnng 50/50 avgas and 90 octane. He gave me a little jetting chart also. I just got the service manuel, and the jetting chart is completely different. Is the book jetting chart for setting 'G' on the timing? It says 'G' in the electrical section in the book, so im assuming the jetting chart is for that timing setting. Also, whats the best fuel mixture to achieve 92 octane? Any information would be great, thanks. Tim
