It's not an A12 car but my '70 6bbl car was built in LA & came new right off the C-P dealership's lot on Chestnut, in Fort Bragg, CA., Sept. 1970. It has N97 & it's always had chrome tips & N42 on the tag. The tips were hooked to resonators. Has N96, w/open element air cleaner, though it has the shield in the front of it. N95, too. Anyway, if the tips came on mine in CA in 1970, I would hazard a guess they might have showed up on a '69. Technically, mine wasn't supposed to get them, either.