Theres too much idle or cruising time on those i think.
Who ported it? I wouldnt get carried away on leaning it out until you figure out the bog. It should pull 5th and 6th while running on the rich side. I purposely run my shit a jet rich as i like to rip around in the upper gears.
I detest plug chops. Jet it safe and go beat on it a few hours. Lots of wfo. Then have a look at the plugs.