FUEL E XHA UST CARBURETION I 1 V V 1 V 3 675 HOSE ADAPTER EXTENSION PIPE Air Injection Reactor 1 66 67 Ser 10 327 exc closed vent oil bath 3 909889 1 V pump inlet stamped GM Note 1 66 Ser 10 283 1 V V l V 67 Ser 10 20 G 10 20 8 cyl 3884657 L H pump outlet L H 66 Ser 10 20 283 1 1 1 67 G 10 20 Ser 10 20 283 3884658 R H pump outlet R H 66 G 10 Ser 10 D D 1st design 588022 1 pump to check valve approx 1S Ig l 66 G 10 Ser 10 D D 2nd V design V A 67 G4 10 20 6 cyl V 3905067 1 pump to check valve 66 Ser 10 w oil bath exc 230 1 66 Ser 10 6 cyl w P S 1 1 4 66 Ser 10 283 327 67 Ser 10 20 G 10 20 8 cyl 3891387 1 pump to fuel mixture control valve 21 66 Ser 10 w P S 250 1 1 V 67 Ser 10 D D 1 pump to check valve 66 674 Ser 10 327 1 1 67 4 Ser 20 8 cyl 1 1 1 68 Ser 10 20 3 27 exc A T 3911029 1 pump to outlet L H Note 1 66 Ser 10 327 V V V 11 67 Ser 10 20 327 exc oil bath V 68 G 10 20 1 fuel mixture cont by pass V V 1 68 Ser 10 20 4 V 1 1 68 Ser 10 20 396 V 3951457 V1 diverter to check valve 66 67 Ser 10 G 10 20 283 4 39893954 1 fuel mixture cont valve by pass L V 68 69 Ser 10 20 w P S 250 V V 1 69 Blazer w P S 6 cyl 3918964 1 diverter to check valve I D Q V 68 69 Ser 10 201 292 V exc D D P S 44 4 1 68 Ser 10 D D w heatstove 495692 1 diverter to check valve L1 L l 69 Ser 10 thru 30 396 3917249 1 V diverter to L H check valve 72 All Blazer 6 cyl 6270049 1 ADAPTER air inj diverter valve 66 69 Ser 10 20 G 10 20 6 cyl 11 L exc D D V 66 69 Ser 10 0 D 1 69 Blazer 6 cyl 3880812 6 EXTENSION exh gas combustion 68 Ser 10 20 396 4 1 1 B9 Ser 1 0 thru 30 396 38808871 1 PIPE V 66 Ser 10 327 1 1 V V 67 68 G 10 20 283 307 V V 67 68 Ser 10 20 8 cyl exc D D 1 396 V 69 Blazer 8 cyl exc A T V 1 V 1 4 69 G 10 20 Ser 10 20 8 cw 1 exc A T 396 D D 1 V4 4 69 Ser 40 50 8 cyl exc T H 400 V 1 1 70 Ser 20 304 307 1 71 G 20 8 cyl V 72 Ser 10 20 Blazer 307 350 1 exc D D 333832 2 1 V PIPE ASSY 4 66 69 Ser 10 20 G 10 20 8 cyl 1 4 1 V exc 396 69 Blazer 8 cyl exc A T 4 V 70 Ser 20 30 G 10 20 307 4 3877484 1 1 PIPE ASSY 1 66 Ser 10 D D G 10 V 67 Ser 10 D D 1 3906396 1 PIPE ASSY check valve w connector 66 69 All 396 3889377 L H PIPE ASSY injection L H 66 67 Ser 10 6 cyl exc D D 3901800 1 PIPE ASSY check valve connector 68 G 10 20 6 cyl 1 68 Ser 10 D D exc heat stove 3923755 1 PIPE ASSY w conn check valve 68 69 Ser 10 20 6 cyl exc D D 4 4 68 69 Ser 10 D D w heat stove V 1 1 4 69 Ser 30 6 cyl exc D D V V 69 Blazer 6 cyl 1 3918952 1 V PIPE ASSY w conn check valve 69 G 10 20 6 Vcyl V 69 Ser 10 thru 30 D D 6 cyl 3943181 1 PIPE ASSY w connector check valve 1V 68 69 Ser 10 20 396 69 Ser 30 396 4 V 72 All 400 exc M H C 1 3917252 1 PIPE ASSY R H 72 All Blazer 6 cyl 331169 1 VV PIPE ASSY 72 G 10 thru 30 8 cyl 376361 L H PIPE ASSY L H 72 G l0 thru 30 8 cyl 330544 R H PIPE ASSY R H Q 4 t GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVR0l ET 72TLi V IV 3 675 3 675 1 3 58 1 V REV 5 79 V