Trying to classify car its a 88 Camero 305 v8 how do you tell if it is IROC RS Z28 ect?

Answer 1

http://www.edmunds.com/insideline/do/Features/articleId=66170 Edmunds.com says it CAN NOT be an RS: "So that brake light blister was gone entirely from the 1988 Camaro, but so was the Z28. Since Chevy had firmly established the IROC name, all high-performance '88 Camaros became IROCs. Base '88 Camaros, meanwhile, inherited the elegant 15-inch five-spoke wheels from the Z28, as well as the Z28's lower body skirting. Also, the Z28's 5.0-liter V8 was now optional on the sport coupe; it gained a throttle body fuel-injection system to make 170 horsepower. The rarest and most intriguing '88 Camaro was the 1LE road racing package optional on the IROCs with both the 5.0- and 5.7-liter TPI engines. Featuring oversize disc brakes, an aluminum driveshaft and a well-tweaked suspension, the 1LE was built to win showroom stock road races." The Camaro base model would not have come from the factory with lower body skirting. It would not have come from the factory with driving lights and wiring for driving lights. It would not come with "Z28" badges. All these items could be added, but it would be more expensive than buying a Z28. So if you have them all, and most importantly, the driving lights wiring looks stock...odds are it's a Z28.