1975 dodge dart wheels and tires

Hey guys i have a similar question to the first one, i have a 75 Valiant Duster YES valiant duster, its from mexico, it has the front of a dart sport but back of a duster, this is how they were made over there and i need help with finding rims for it. Its a 225 out of the factory automatic .i dont know if its small bolt or big.