Spoilers (D80): The spoiler option was not available in 1967 on any Camaro. It became available as an option on all cars (except those with a rear antenna) in 68-69. It was not mandatory on any car, except for the 69 pace car replicas and later 69 Z's. The narrower 68 spoiler was used on the 69 Camaro up to January - March of 69, when the wider 69 spoiler was phased in. One of the torsion bars on an original spoiler equipped car will be of larger diameter to compensate for the weight of the spoiler. The front center of the 69 subframe will have a drilled hole to mount the center brace of the front spoiler.
Cowl hood (ZL2): The cowl hood was an option on SS and Z28 models in 1969 and was included on all COPO's and Pace Cars. It was introduced midyear 69. #1 ZL1, built 12E at Norwood is one of the first Camaros to have a factory ZL2 hood. A late December LOS-built Z28 with ZL2 has also been documented.
The ZL2 option included a solenoid and flapper in the hood. The wiring for the solenoid was routed through a
special hole in firewall above the fuseblock. Only 10,026 cars received cowl hoods in 69 and about half of those went to COPO's and Pace Cars, meaning there were only 5,000 Z28's and SS's (out of about 20,000 Z28's and 30,000 non-Pacer SS's) that received the cowl hood.