B322 BUICK MODEL REFERENCE 1981 ROCHESTER 2BC Follow procedure outlined below to determine carburetor and or part number 1 Determine vehicle model check VIN DIVISIONAL CODE 2 Determine engine and carburetor type 3 Part number can be determined by cross referencing corresponding column number with same column number on charts PRODUCTION VIN NO DIV CODE USAGE COL NO 17081191 234 A 231A w M T 1 17081670 1234 X 2 5 5 w A T Closed Loop NB1 Exc A C 2 17081671 1234 X 2 5 5 w M T Closed Loop NB1 Exc A C 3 17081672 1234 X 2 5 5 w A T Closed Loop NB1 A C 4 17081673 1234 X 2 5 5 w M T Closed Loop NB1 A C 5 17081192 234 A 231A w A T Fed 6 17081194 1234 A35 231A w Calif 7 17081197 2 4 B 231A w Fed 8 17081198 1234 B 231A w Calif 9 17081198 1234 A Exc 35 80 231A w Calif 9 17081160 4 A 4 35 10 17081650 1234 X 2 8X w A T Fed NB1 Exc A C 11 17081651 1234 X 2 8X w M T NB1 Exc A C 12 17081652 1234 X 2 8X w A T A C Fed NB1 13 17081653 1234 X 2 8X w M T A C NB1 14 17081740 1234 X 2 8X w A T Calif NB1 Exc A C 15 17081742 1234 X 2 8X w A T A C Calif NB1 16 17081199 234 A 231A w A T Fed 17 WAREHOUSING AND mstniautlow Division OF GENERAL Motons c0m 0nATl0N Bulci 41 REV 5 81 3 155 c 3 000 GROUP