Flanno,thats what I meant when I said it [the idle] went erratic. Didn't matter what temp the engine was it just went to crap again. And I believe it's from a leaking front bearing. The engine will not hold a tune at all. As far as it keeping it at 220 I should have said 220ish. Which means 220-250,not 250-290 where it was when I shut it down. They other thing I noticed was when I would fill it full of fuel the idle wanted to come down so something is amiss. I have never had a engine do that[fill with fuel idle down] the only thing I found was the air leak in the front bearing. And what I find puzzling is how some people say leaking front bearing is okay,I've had 1-2 that dribbled a little fuel at first but none of them let air by. All my needles were set back to stock. The idle needle was moved back to it's original position.
I don't adjust my engines to a specific temp but was taking the readings more as a reference mark.