340 vs 360
To answer the question - "what do they mean by a stock block?" ... The answer might be online @MA ... Q&A, did not check. Otherwise, it's in the latest issue in case you care to look. I don't want to take liberties with what R.E. wrote.
Nah, I just checked and it's not on the site. But it's under the title "BLO'D UP", and is the 1st Q&A in "Tech Topics", Dec '07.