March 31, 2006 6:22:46 AM PST rss 2011 SLP Camaro ZL1  »  [Read Full Story]   
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The year was 1969, and the muscle car wars were in full swing. Each one of the big three had developed their own version of the ultimate high-performance big-block engine. Then Chevrolet unleashed the ZL1®, the most powerful 427- cubic inch engine e...