Mike,

Michael's comment about running 100% anti-freeze was because doing so degrades the overheat and freeze protection compared to a 50/50 mix. Running 100% put your engine more at risk for freezing than it would have been otherwise. This could have led to problems thereafter.

If you don't mind me asking, where are you located. From your handle, I would suspect that you might be in northern Ohio, and if that's the case, you're not far from me. I might be able to come listen to it sometime and offer thoughts. I had a 2.3 in an '86 a while back that was the source of fun and amusement.

James