ApplicationCompatible for TOYOTA 4AF COROLLA 1.6L 87-91 2 BARRELPart Number2110016540,21100-16540,21100 16540SpecificationBolt Hole Spacing Length Width:112×51mm(Center To Center) Intake Side Inner Diameter(two):30/34mmChoke Air Horn Inner Diameter:59mmChoke Air Horn Outer Diameter:63mmPackage Included: 1x carburetor as picture shows Condition: 100% Brand New Accessories: You will get exactly as shown in the picture aboveNotice-The oil channels of carburetors will be blocked without cleaning. -Please clean up the oil channels and air filters as well as use the clean fuel before installing the carburetors -Please confirm your old part number matches up with one of the part numbers above -Professional installation is highly recommended (No Instruction Included) -For any needs please contact us