Bill,
Yes Greg is knowledgeable and a nice guy. I think he has a database on early super stock mopars. Darrell Davis really knows these cars and is enjoyable to talk to. He can be reached at 407.330.9100. James Kramer of Herman PA knows these cars too and can be reached here:
http://www.kramerauto.com/ ]Kramers website[/url] Or call him at 724.285.5566