Regarding the Cadillac 500 motors, some of the very latest ones are fuel injected. Might be harder to adapt, and probably not the answer for an 11-second truck, but might be interesting.
Hanging out on the Corvette forums its not unusual to read about broken stroker motors. When it comes time to rebuild they seem like a good idea. Once you start pushing them a little it seems many of them don't last.
