B101 A s A l l 1 in A B ICK BUICK MODEL REFERENCE A 1977 ROCHESTER 4BC A Follow procedure outlined below to determine carburetor and or part number 1 Determine vehicle model A 2 Determine engine and carburetor type 3 Part number can be determined by cross referencing corresponding column with some column number on chart PRODUCTION USAGE A COL NO 17057550 All 350R 403 exc A C Calif A 5 17057553 All w A C 350R 403 Calif 6 A l 17057253 A Sta Wag w A C 403 Federal 2 17057202 A 350L exc A C A 10 17057204 A w A C 350L 11 A 17057248 A Sta Wag 350J 4 7 A r V f 17057250 A Sta Wag 403 exc A C Federal V A 1 A 1 17057258 A B C 403 Alt A A A 3 A AA 17057255 A exc Sta Wag B C 403 8xc A C Federal A 8 A 17057241 A exc Sta Wag B C 350 1 A g 4 A 1 A 17057256 A exc Sta Wag B C w A C 403 Federal 9 A l 17057250 A BA Sta Wag C 350R A ex c A C Federal l i 1 A A A A A 17057253 f A B Sta Wag C 350R w A C Federal A A 2 Y A 17057502 A X 350L exc A C Calif A 1 A 12 A A 17057504 A lx w A C 350L Calif 1 13 1 A 17057582 A X 350L exc A C Alt 1 A 1 4 A V A 17057584 A X w C60 350L f j A 15 A A A A A 17057255 B exc Sta Wag 350R A exc A C Federal 1 l A A f 8 1 A A E 17057256 B exc Sta Wag w A C A 350R Federal A A 9 1 A 17057242 Clw A C 350J Federa Nletal Plugs A AAAA A A g j E W over the idle mixtureneedles A l A 16 A 1 A WAREHOUSlNG AND nlsrnlautlom DlVlSlONAOF GENERAL morons CORPORATION BU CK 41 REV 5 81 j I a as c 3 000 GROUP