CHEVROLET EXHAUST EMISSION TUNE UP LABELS EMISSION YEAR MODEL AND USAGE CODE STANDARDS PART NO 1979 A 305H A X9 Fed 14015552 1979 AT19 27 B 350L AZ Fed 14006779 1979 A 305H CF Calif 14006783 1979 A 305H exc 35 80 CH Hi Alt 14006784 1979 A exc 37 B 350L CK Hi Alt 14006786 1979 AT19 27 B 350L CN Calif 14006788 1979 A 200 w M T C4 Fed 14010222 1979 A19 27 AZ 305H w MV9 Y9 Fed 14020686 1979 A 231 2 BV Calif 25505238 1979 B 305 AF Fed 14006776 1979 B47 69 305G CB Calif 14006781 1979 B47 69 250 AU Fed 14007762 1979 B47 69 250 AW Calif 14007763 1979 F X 250 L3 Fed 14007869 1979 F X 250 L4 Calif 14007870 1979 F 305 exc Z94 D6 Fed 14010240 1979 F 350L exc Z94 D7 Fed 14010242 1979 F 305 D8 Calif 14010243 1979 F 350L D9 Hi Alt 14010244 1979 F 350L L2 Calif 14010245 1979 H 151V w M T exc A C FW Fed 10010614 1979 H 151 w A T A C PN Calif 10008844 1979 H 151 w A T Exc A C PP Calif 10008845 1979 H 151 w M T A C PR Calif 10008846 1979 H 151 w M T exc A C PS Calif 10008847 1979 H 151V w A T A C PX Fed 10008851 1979 H 151V w A T exc A C PY Fed 10008852 1979 H 151V w M T A C PZ Fed 10008853 1979 H 151 9 wfA T A C RP 10012851 1979 H 151 9 w A T exc A C RR 10012852 1979 H 151 9 w M T RS 10012853 1979 H 151 9 w M T exc A C RT 10012854 1979 H 196 w M T BB 25501053 1979 H 196 vv M T BP Fed 25501442 1979 H 231 w A T BR Calif 25501443 1979 H 350G AX Fed 14006777 1979 H 305U CC Calif 14006782 1979 H 231A w M T BY Calif 25501672 1979 H 231A BZ Hi Alt 2 5501673 1979 T AR Fed 14004445 1979 T AS Hi Alt 14004446 1979 T 1 6E AT Calif 14004447 1979 80 T 1 6 0 w M T C2 Calif 14004478 1979 X 305 exc Z94 D6 Fed 14010240 1979 X 350 D8 Calif 14010243 1979 X 350L L2 Calif 14010245 1979 Y 350 X6 Fed 14015504 1979 Y 350 CJ Fed 14006785 1979 Y 350 CM Hi Alt 14006787 1979 Y 350 CR Calif 14006789 1980 NOTE 1 To improve cold start problems NOTE 2 To improve durability NOTE 3 Use with engine family O1C2EY instruction cluster warning flag 1980 A B 229 w A T exc Sta Wag AB 14020621 1980 A 267 AK 14020622 1980 A 305H w A T AM Fed l4020623 1980 AT19 27 350L CW 14020625 1980 A B 305H 26 Calif 14023197 1980 AT AW 229 w M T ZR 14021871 1980 AT AW exc 35 305H w M T ZS Fed 14021872 1980 A F H 231 A w A T KP Clalif 25506764 1980 AZ 231 3 NB Fed 25505718 1980 AZ 231 3 NH Fed 25506315 1980 AZ 231 3 NM Calif 25506832 A A Z WAREHOUSING AND DISTRIBUTION DIVISION OE GENERAL MOTORS CORPORATION SE w 463