CH EVROLET czvc MODEL REFERENCE 1980 ROCHESTER 4BC I l Follow procedure outlined below to determine carburetor and or part number I 1 Determine vehicle model check VIN DIVISION CODE I 2 Determine engine and carburetor type 3 Part number can be determined by cross referencing I corresponding column number with same column I number on charts I I Note 1 Used with EV Engine I Note 2 Used with MC Engine I Note 3 Used with AA AJ AR Engine Note 4 Used with AT AW AY Engine Note 5 Used with 307 and AB AK AS Engine Note 6 Used with 307 and AU AX AZ Engine Note 7 Used with 307 and AI I AN Engine Note 8 Used with 307 and BA BB Engine I vm I t V I PRODUCTION DIV CODE USAGE COL N0 I 17080202 1 3 5 A 305H wlA T MV4 MV9 M33 Exc A C 1 I 17080202 1 A B F 350L w A T Exc A C 1 17080202 1 B 305H wIFed Exc A C 1 I I 17080202 1 F 305H wlA T M38 Fed Exc A C 294 1 17080202 3 A 305H vvIA T Fed Exc A C 1 I 17080204 1 5 A 305H wlA T MV4 MV9 M33 A C 2 1 17080204 1 A B F 350L w A T A C 2 17080204 1 B 305H w Fed A C 2 4 17080204 1 F 305H wlA T M38 Fed A C Exc Z94 2 I 17080207 1 5 A 305H w M T M20 3 I 17080207 1 F 305H 350L w M T 3 17080243 1 AZ 231 3 w A T Fed 4 17080502 1 5 A 305H wlA T M33 M38 Exc A C 5 17080502 1 B F 305H wICaIif Exc A C 228 5 17080504 1 5 A 305H wlA T M33 M38 A C 6 17080504 1 B F 305H w Calif A C 6 I 17080274 12 F 4 9T 7 I 17080543 1 AZ 231 3 w A T Calif 8 I 17080516 1 5 A 305H w A T M33 M38 Exc A C 9 I 17080516 1 B F 305H wICalif Exc A C Z28 Z 9 17080517 1 5 A 305H wlA T M33 M38 A C 10 I I 17080517 1 B F 305H w Calif A C 10 I I I I GM PARTS DIVISION GENERAL MOTORS CORPORAT ON CHEVROLET 1O REV 9 80 2 c 3 000 GROUP I