That is a 1968 Motion Chevelle shown in the article. Motion built at least one 1966 427 Chevelle and at least one 1967 427 Chevelle. They were featured in magazines when they were new. When the 67 Motion Chevelle was two weeks old, the owner drove the car to the track and set the track record for his class.
http://cgi.ebay.com/aw-cgi/eBayISAPI...tem=1167869284
[Edited by JoeC (07-19-2001 at 02:00 AM).]