My 2 cents... [img]<<GRAEMLIN_URL>>/wink.gif[/img]

I went through my old Chevy Special Equipment manual (the green page book) with a publication date of 3-9-72. I couldn't find any mention of the ZLX. There is, however a part number for the cast iron open chamber rectangular port heads, and of course, a part number for the second design L88 (when combined would obviously make the ZLX). My take on this has always been that Joel &amp; Company @ Motion coined the phrase, advertised it and the rest of the people in the biz picked up on it. In the end, I think it was pretty clever. I'd still like to get one for $1995 though...L-O-L

Wayne [img]<<GRAEMLIN_URL>>/beers.gif[/img]