L368 OLDSMOIBILE MODEL REFEERENCIE 1981 ROCHESTER 4BC Follow procedure outlined below to determine carburetor and or part number 1 Determine vehicle model check VIN DIVIEESIOINAL 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 VIN PRODUCTION DIV CODIE USAGE COL NO 17081253 34 IB Eixc 35 307 w Fed Closed Loop NB1 A l lVl31 I 17081253 3 A 307 w A T M31 Fed Closed Loop NB1 1 17081253 3 B 307 w A T l I31 Fed Closed Loop NB1 1 17081253 34 E 307 w Fed Calif 1 17081248 3 6 C l 1 4 2 17081289 34 E 4 1 4 3 17081254 34 IB C 307 w A T lVlW9 Fed Calif Closed Loop NB1 4 17059321 3 A 307 w A T lVl31 Fed Closed Loop NB1 5 17059321 34 B C 307 w A T Fed Calif Closed Loop NB1 6 17059321 34 E 307 w Fed Calif 7 I 17059326 3 6 C 4 1 4 8 o torn cement morons serlvzrce mrrrs ops mirrtows otusmoetts 31 REV 7 87 3 209 C 3 0O0 GROUP