Well I will guarantee it's tuned correctly because I am the only one who touches the needles.

I also took apart the carb and cleaned it as well as tried brand new batteries to make sure that was not the issue. The problem is it was doing the exact same thing when it went in and sat for 2 weeks... it was a broken ground somewhere ( I dont know I didn't speak with Bill personally) and then it last 4 or 5 mins of doing circles and acted up again doing the similar thing. We didn't have a spare plug handy to try. I am pretty sure it's electrical and I don't really take ignitions apart and repair them... not my field

I can't remember why it went in the first time but it was a different problem all together.

I have the ability and knowledge to go over the timing but quite frankly I have enough on my plate then to be working on other people's engines that just came back from being "repaired" I am not knocking Taurus.. just stating recent experience with them.