What are the timing specifications for this engine? The emission label is missing

Hi dbencat. I think you really need to get yourself a Chilton's manual. I'm guessing your local library with have a copy of the Chilton's for your vette, but if not your local bookstore or parts store will. If all else fails a quick search of Amazon.com or ebay will most likely yield results. here's an address to a search I did on ebay that shows a few Chiltons on sale for your model year: http://search.ebay.com/search/search.dll?sofocus=bs&sbrftog=1&catref=C6&from=R10&submitsearch=Search&satitle=Chilton%27s+Corvette&sacat=-1%26catref%3DC6&a53=-24&a54=-24&a47=-24&a35322=-24&a94=-24&alist=a54%2Ca55%2Ca53%2Ca47%2Ca94%2Ca3801%2Ca35322&pfmode=1&reqtype=1&gcs=1100&pfid=1273&pf_query=Chilton%27s+Corvette&sargn=-1%26saslc%3D2&sadis=200&fpos=ZIP%2FPostal&ftrt=1&ftrv=1&saprclo=&saprchi=&fsop=1%26fsoo%3D1&coaction=compare&copagenum=1&coentrypage=search&fgtp= and here's a link to your Chilton's manual on amazon.com