If its running on at the end of the straightaway its too lean on the top. fatten the top 1 hr at a time till it stops running on, then start leaning the bottom till the idle is strong and steady. idle should not be adjusted more then 1/8 of a turn in either direction from box setting for the perfect tune.
One more question, do you know the out of box setting for the idle? I may have moved it too much already.
Thanks again!