The 305 HO V8 revved up to a maximum of 5,500 RPM, and it powered muscle cars like the Camaro Z28 and IROC-Z. The Camaro Z28 and IROC-Z models started production in 1983, before they were ...

In the mid-1980s, just as the pony car wars started heating up again, Chevrolet introduced the IROC-Z option on the Camaro as a way of not only competing with the Mustang, but tying in its racing ...