my 67 ss 350 has q-jet 7027213 dy 0360. ok so here is the question how can a 7027213 which is correct for my 67 350 4 speed non-cal car 2nd type with a born date of 04a have a date of 0360 (feb 6 of 1970?). the numbers are stamped on the carb not in the rebuild circle tag. thx