My 57 is stock. The hardest part to find and the most expensive ios the 4bbl air cleaner whether it be the oil bath or the power pack. I have been to swap meets, saw them on ebay and craigslist that go anywhere from $350 to $1,000.00. Some of them are completely rusted thru others have been restored. They are getting harder to find. I wish one of the classic car places like Danchuk, Ecklers would make a reproduction that does not cost a fortune. I have the top part with the spout but cannot find the bottom pan alone.