I've considering rebuilding my 305 in my 1980 SS. The car has been sitting under a carport for over 12 years now and the engine will prob. need either rebuilt or replaced. Which is the better option? I know it's going to come down to a money issue, but I'd really like more horsepower...hell, who wouldn't? Here's the catch...the 305 has only 82,000 origional miles on it. I haven't even tried to start it yet, and I'll have to break it down to see what has gunked up and what is salvagable. Would it be easier to just get a "turn-key" crate engine?