Interesting side note/thread jack, I was at a show last summer and for the charity dinner auction there was the full engineering blueprint for a 426 hemi head. No joke, it was about 4 feet tall and probably 10 feet long. They didn't take CC's so all I had was the cash in my pockets but another bidder and I ran it up to about 600 before I had to bail. I'd have gone into the thousands if they'd have taken CC's or I'd brought more cash or the check book. Talking to the buyer after he said the same thing, he'd have gone as far as his bank account would allow too. It was awesome.