Your engine is not nearly close to being run in. Don't lean it out yet to where you get perfect transition and max rpm - 200-300, burn 5 gallons of gas first, switch to synthetic, and then set your needles. As long as the engine is breaking in, set your flying idle a bit high, and both low and high needles on the rich side. As the engine breaks in, you can gradually lean it out.
DKjens