Craigslist 383 Shortblock: Would you consider it?

http://omaha.craigslist.org/pts/2256402719.html

What do you think?

1. What does he mean about debris screens? I assume this is a trick option to keep the oil cleaner and the wear and tear to a minimum?

2. Also, I'm no cam expert but isn't 581/597 a pretty big cam? With the LSA and the lift duration, is this a streetable cam?

3. And I'm positive the part about a 79 Camaro is totally irrelevant?

Thanks guys.