To wrap up this thread, I found a very nice 350 in a '68 Skylark that was getting an LS. Allegedly 89K original miles, but who knows. Compression was 90-100 in all cylinders, no smoke, and it ran very smoothly. He wanted $650 and I paid $500 - removed and delivered to me. I'm pretty excited since this is more of a straight drop-in than the 455 would have been. Plus, the 455 I was getting needed new heads at the very least and I don't even know if it was a running engine. Thanks for all of your input!!!