1967 had a 3F on the cowl tag, decklid drilled for 400 emblem lower passenger side), 400 grilles with chrome L shaped inserts and complete fill in of the bumper to core support (no holes) among the 400 hood.
As well, the air cleaner should be chrome louvered, and the valve covers chrome.
Block will most likely be YT automatic or WZ manual..there are other 400 codes, but very, very rare.
WQ, WI, WU, XN...maybe a few others..
Si Vis Pacem Parabellum
1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.