I know a guy in New York that had water in his numbers matching 69 Z. He had only had it for a week and didn't know the previous owner had a leak and added too much water. Power outage and his block got cracked.
I haven't had my 69 done long enough to get it more than 100 miles away from home yet. Still chicken! I was going to paint mine red but changed my mind at the last minute because I had so many people telling me to keep it the original color. I'm glad now that it's black. I do get many compliments on the triple black. Mostly from the older crowd. The younger fans like the red TA much better. The only drawback I can see with black is it's a hot color. It's a great color for up north here but if I lived in the hot South I think it would get blistering hot!