I see this block on EBAY as a Procomp block which looks just like the one I have for 999.00 and no one bid on it HMMMMMM
http://cgi.ebay.com/ebaymotors/ws/eB...fvi%3D1&_rdc=1
This one is on Racing Junk for 1100.00 and they have 21 of them for sale.
http://www.racingjunk.com/category/1...350-MAINS.html