Ignition timint decal - CODE CH or CN??
 

Does the '69 COPO camaro use the CH code decal, the same as the 69 396/375hp engine or the CN code used for the 427 L72 engine? If the former, any idea why?

Re: Ignition timint decal - CODE CH or CN??
 

Both L72 and ZL1 COPOs used the CH tune-up sticker.

Re: Ignition timint decal - CODE CH or CN??
 

Thanks, that's what the MacNeish book said, just seems weird that the L72 sticker would not be used...

Re: Ignition timint decal - CODE CH or CN??
 

Just don't go by what the decal vendor charts say. The decal manufacturer (Osborn) has mistakes in their application listings.