I have a coaster that peeps flock to, that goes 217, has 150 or so inversions, and is 71,000 feet long. Intensity of 46. People still ride it, even after it's been tested. Check out my page to see it...warning: lots O graphics (170K). I didn't feel like thumbnailing the images.
http://www.people.cornell.edu/pages/jcs33/rctcoaster.html