Your 302cid/290hp Z/28 is on Ebay...
Engine pad is stamped: 18N447838 V0522MO (the engine is currently in a Camaro with this VIN: 124378N421989)
Seller id: staytdogg
Seller location: Provo, UT
Seler contact info: 801-361-6512
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=320279859930&ssPageName=ADME:B:SS:MOTORS:1123
Paul