Last Thurs, the bolt fell through the carb, into one of the intake valves, bounced off the piston (or at least part of the bolt did), and exited the exhaust valve to travel across the intake manifold and down one of the intake valves on the other side of the engine!

I have just started to figure out all the damage. But, I got 3 spark plugs that have had the gap removed (the piston must have shoved something against the tip) .. so I know I got serious problems.

Anyone else have this happen? Or heard of it? Depending on the damage, I may make a stroker out of my 400... I found a lead on parts here: http://www.440source.com/
Anyone had any experience with that outfit?