hello all, i am looking at a 72 convertible with 442 badges and grilles, is there a way to verify this is a 442 without a build sheet? i went to 442.com and if i read it correctly it said the 442 package for 72 was only the badges, grille and upgraded susp.is this true? the car does also have the sway bars and boxed control arms. also the vin says 350 4bbl single exaust. thanks for any help.