help with casting numbers please

yes it is a 76 318. heads? can't find that casting number. what is on it now 2 or 4 barrel carb? i'm betting the head is really this one:
3769974 360 1975-76 1.88 1.60 if this is correct all is not lost. this motor can get woken up from it's sleep. don't know what you are looking for but there are several threads on here with 318 builds. 300-400 hp for street. there is a 318 on here that just ran 11.55 in the 1/4.