408 6pack setup

Also wondering if anyone has some original carby parts for sale. willing to post to australia. would like spare metering plates for the outside secondary carbies and metering block for the primary. also any other carby parts that willing to sell. is there metering blocks that will fit the secondary carbies on the factory setup or wont it fit between the primary and back secondary. obviously front secondary os no issue just the back carby would be.cheers all