My air cleaner is a 400 with California emissions, which means it had an "ugly snorkel". The top plate was chrome though...not sure this answers the question though for the OP.
1967 FB 400 4-speed A/C Tyrol Blue w/ Dark Blue 1967 GTO 400 AT A/C Gulf Turquoise w/ Black (dad's 1st car, my last car)
