I I V I CHEVROLET I I I CH EVRO LET I MODEL REFERENCE 1976 ROCHESTER 1BC Follow procedure outlined below to determine carburetor andlor part number 1 Determine vehicle model 1 2 Determine engine and carburetor type 3 Part number can be determined by cross referencing I corrseponding column with same column number on chart I PRODUCTION USAGE COL N0 I 17056012 A wIA T 250 exc Calif 17 I 17056314 A 250 Calif 23 I 17056015 A w M T w 3 08 ratio 250 21 I 17056018 A w C60 250 19 17056013 A X w M T w 2 73 ratio 250 20 17056013 F w M T 250 20 I 17056012 F X wIA T 250 exc C60 Calif 17 17056314 F X wIA T 250 Calif 23 17056014 F X wIA T w C60 250 exc Calif 18 I 17056015 F X w M T w 3 08 ratio 250 exc Calif 21 P I 17056022 H wIA T w A I R 140 exc C60 13 17056023 H w M T wIA R 140 exc C60 15 I 17056026 H wIA T wIC60 w A l R 140 14 17056027 H w M T wlC60 w A I R 140 16 17056030 T w A T 1 4 exc C60 Calif 4 I 17056034 TwIA T 1 6 exc C60 Calif 8 17056031 Tw M T 1 4 exc Calif 1 17056035 T w M T 1 6 exc C60 Calif 6 17056032 T wIA T wIC60 1 6 exc Calif 9 I 17056330 Tw A T 1 4 Calif 3 I 17056036 T w A T w C60 1 4 exc Calif 5 17056331 T w M T 1 4 exc C60 Calif 2 I 17056332 Tw A T wIC60 1 6 Calif 10 I 17056334 TwIM T 1 6 exc C60 Calif 11 17056335 T w M T 1 6 Calif 1st design 7 I 17056339 T w M T 1 6 Calif 2nd design 12 17056016 X w A T wlnon integral head 250 22 I I GM PARTS DIVISION GENERAL MOTORS COFlPORATlDN CHEVROLET 10 REV 9 78 3 1 c 3 000 GROUP