m\d 4160 list #1850-2 vaccum secondaries manuel choke after carb dip all parts recleanded in a heated sonic wave tank gaskets surfaces milled flat loose boosters replaced fresh chromate finish no paint is used all steel parts are powder coated all new plated fasteners pro parts used ethnol tolerant with non stick gsks engine tested great idel quality responsive the price is firm no texs calls only yes i can rebuild your carburetor