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Camaro Holley Carburetors

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Holley Carburetor Numerical Listing (Requires Adobe Reader). Where ECL code is known, it is shown.

Year	Engine Specifics	GM Model #-ECL	Holley List #
67	396/375 (L78) M/T w/o A.I.R. - early	3906633-EO	3811
67	396/375 (L78) M/T w/A.I.R. - early	3906637-EC	3815
67	396/375 (L78) M/T w/A.I.R. - late	3916145-CU	3911
67	302/290 (Z28) M/T w/A.I.R.	3916145-CU	3911
67	302/290 (Z28) M/T w/o A.I.R.	3916143-CT	3910

68	396/375 (L78) M/T	3923289-DZ	3911
68	302/290 (Z28) M/T	3923289-DZ	4053
68	302/290 (Z28) M/T (2x4 cross ram)	3941140	4210

69	302/290 (Z28) M/T	3923289-DZ	3911
69	302/290 (Z28) M/T (2x4 cross ram)	3957859	4295
69	396/375 (L78) 427/425 (COPO)	3959164-GE	4346
69	427430 (ZL1)	3955205	4296

70	350/360 (Z28) M/T (CA)	3972123	4489
70	350/360 (Z28) M/T (FED)	3972121	4555
70	350/360 (Z28) A/T (CA)	3972122	4554
70	350/360 (Z28) A/T (FED)	3972120	4490
70	402/375 (L78) M/T (CA)	3967479-GM	4491
70	402/375 (L78) M/T (FED)	3967477-GG	4557
70	402/375 (L78) A/T (CA)	3969894-GP	4556
70	402/375 (L78) A/T (FED)	3969898-GR	4492

71	350/330 (Z28) M/T	3989021	4801

72	350/255 (Z28)	3999263-GA	6239

Legend: A.I.R. - Air Injection Reactor M/T - Manual transmission A/T - Automatic transmission CA - California emission standard COPO - Central Office Production Order FED - Federal emission standard

Holley Three-Digit Date Codes - Through 1972
1st Digit		2nd Digit		3rd Digit
Stamp	Year	Stamp	Month	Stamp	Week
4	1964	1	January	1	1st week
5	1965	2	February	2	2nd week
6	1966	3	March	3	3rd week
7	1967	4	April	4	4th week
8	1968	5	May	5	5th week
9	1969	6	June
0	1970	7	July
1	1971	8	August
2	1972	9	September
		0	October
		A	November
		B	December

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