1967 Mustangs did not come with the 302 engine from factory,first year was 1968 and it would have the J- as the 5h digit in vin number which denotes that car was a 302ci engine with a 4 bbl carb.
Engines for 1967 were the base in line 6, the 289 in 2 and 4 bbl the 289 HP engine (K-code) and first year for the 390 (S-code) Big block engine.
Hope it helps!