there always seems to be a grey area when talking about rear end strength and horsepower levels....obviously its power and traction that breaks parts...so what id like to know is what kind of 60' times have you guys run reliably (multiple seasons of racing) w/o breakage.

 

You might want to check with Miles about that. He's got a 427 with a 9 bolt. I think his site is www.9bolt.com.