 
    
	
		It wasn't the Fireball, Dave.  The one you're referring to operated at Riverview Park in good old Chicago,IL.  Unfortunately, Riverview and the Fireball closed forever in 1968.  I have a book with the ad for it claiming to go 100 MPH, when it had only about a 70 foot drop (although it was very steep and went under the staion :)) 
 
~TodD~ 
"Help! Help! I'm being repressed!"