I started at 76 primary/82 secondary. I tried jetting up and lost power. Jetting down kept gaining power. We didn't go leaner than 76/76 because of the brake specific fuel consumption figures. It looked like the motor was happy at that point. I don't remember exactly what the BSFC numbers were. I think they were in the .450 range. The motor may have gained more power with even leaner jets. I don't know.
Paul
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