i have a 01 camaro and had to change my flexplate do to some cracks and when i was torquing the crank bolts one broke off what would y'all recommend i do

 

Remove the flex plate & see if you can get some vice grips on it. If not then drill a small hole in the bolt & use an "ease out" to remove it.

An ease out is basically a reverse threaded screw so it sets as you turn it cc wise.