i got a 64 vette that some so called experts told me has the j56 big brake option but none of these experts can help me prove it being the car only has hafe of the factory parts on it ive hade the car for about 15 years i do remeber haveing finned drums but i replaced them a long time ago before i know that the brakes could be such a big deal i need some parts and info thanks to all of you cool cat out in cyber space for any help