On 67 the engine unit number is 6 digits above the YT block code. You have to verify through PHS car billing history if the YT is numbers matching or numbers correct. Correct is the correct coded block and trans but not the one that originally came in the car.
As well, the dist should be 1111250 and carb 7027272. But the critical items are the block and trans. You can pick up a generic set of 670's in the correct date range as well as the dist. and carb.
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.
