this is not someone i know...but a tough lesson, luckily no one was injured!! i used to spin my 350 over 7000rpm all the time with a stock GM flexplate, i think i consider myself lucky!
After seeing that photo I "got around to" putting in all 11 lower bolts in my Lakewood shield tonight. Even though I don't have a flywheel anymore. 24 lbs of pressure plate could still come out on a 5K dump or 6500 powershift.
That hole through the wall looks strange though... it looks like the whole flywheel shot through like a frisbee. I would have expected chunks in several directions.
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72 Nova SS - Minitubbed 70 Nova SS - #'s L-78 Bench Stick 68 Acadian SS clone - factory air 67 Chevelle rag - SS 427 clone