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Tune-Up Specifications

ENGINE IGNITION TIMING DISTRIBUTOR SPARK PLUGS CARBURETOR No.
Manual Trans. Auto. Trans. Cam Angle Point Gap Type Gap Make & Type
AMERICAN MOTORS  Reg. Prem.  Reg. Prem.                 
199" 6 Cyl. 1-Bbl. 10°B 13°B 10°B 13°B (1) (1) CH. N14Y .033-.037" Hol. 1931 1
  Air Guard 3°B 3°B 3°B 3°B 31-34° .016" CH. N14Y .033-.037" Hol. 1931 2
  Eng. MOD TDC TDC TDC TDC 31-34° .016" CH. N14Y .033-.037" Hol. 1931 3
232" 6 Cyl. 1-Bbl. 5°B 8°B 5°B 8°B (1) (1) CH. N14Y .033-.037" Hol. 1931 (4) 4
  Air Guard & Eng. MOD TDC TDC TDC TDC 31-34° .016" CH. N14Y .033-.037" Hol. 1931 (4) 5
232" 6 Cyl. 2-Bbl. 5°B 8°B 5°B 8°B (1) (1) CH. N14Y .033-.037" Car. WCD 6
  Air Guard & Eng. MOD TDC TDC TDC TDC 31-34° .016" CH. N14Y .033-.037" Car. WCD 7
290" V8 2-Bbl. TDC 3°B TDC 3°B (2) (2) CH. N12Y .033-.037" Hol. 2209 8
  Air Guard 2-Bbl. TDC TDC TDC TDC (2) (2) CH. N12Y .033-.037" Hol. 2209 9
290" V8 4-Bbl. ...... TDC ...... TDC 29-31° .016" CH. N12Y .033-.037" Car. AFB 10
  Air Guard 4-Bbl. ...... TDC ...... TDC 29-31° .016" CH. N12Y .033-.037" Car. AFB 11
343" V8 2-Bbl. ....... TDC ....... TDC (3) (3) CH. N12Y .033-.037" Hol. 2209 12
  Air Guard 2-Bbl. ....... TDC ....... TDC (3) (3) CH. N12Y .033-.037" Hol. 2209 13
343" V8 4-Bbl. ...... TDC ...... TDC (3) (3) CH. N12Y .033-.037" Car. AFB 14
Air Guard 4-Bbl. ..... TDC ...... TDC (3) (3) CH. N12Y .033-.037" Car. AFB 15
BUICK                     
225" V6 2-Bbl. 5°B 5°B 29-31° .016" AC 44S (1) .035" Roch. 2GC 16
  A.I.R. 2-Bbl. 5°B 5°B 29-31° .016" AC 44S (1) .035" Roch. 2GC 17
300" V8 2-Bbl. 2 1/2°B 2 1/2°B 29-31° .016" AC 44S (1) .035" Roch. 2GC 18
  A.I.R. 2-Bbl. 2 1/2°B 2 1/2°B 29-31° .016" AC 44S (1) .035" Roch. 2GC 19
340" V8 2-Bbl. 2 1/2°B 2 1/2°B 29-31° .016" AC 44S (1) .035" (2) 20
  A.I.R. 2-Bbl. 2 1/2°B 2 1/2°B 29-31° .016" AC 44S (1) .035" Roch. 4MV 21
340" V8 4-Bbl. 2 1/2°B 2 1/2°B 29-31° .016" AC 44S (1) .035" Roch. 4MV 22
  A.I.R. 4-Bbl. 2 1/2°B 2 1/2°B 29-31° .016" AC 44S (1) .035" Roch. 4MV 23
400" V8 4-Bbl. 2 1/2°B 2 1/2°B 29-31° .016" AC 44TS .035" Roch. 4MV 24
  A.I.R. 4-Bbl. 2 1/2°B 2 1/2°B 29-31° .016" AC 44TS .035" Roch. 4MV 25
430" V8 4-Bbl. 2 1/2°B 2 1/2°B 29-31° .016" AC 44TS .035" Roch. 4MV 26
  A.I.R. 4-Bbl. 2 1/2°B 2 1/2°B 29-31° .016" AC 44TS .035" Roch. 4MV 27
CADILLAC                     
429" V8 4-Bbl. ............... 5°B 30° ± 2° .016" AC 44 .035" Roch. 4MV 28
  A.I.R. 4-Bbl. ............... 5°B 30° ± 2° .016" AC 44 .035" Roch. 4MV 29
CHEVROLET                     
153" 4 Cyl. 1-Bbl. 4°B 4°B 31-34° .016" AC 46N .035" Car. YF 30
  A.I.R. 1-Bbl. 4°B 4°B 31-34° .016" AC 46N .035" Car. YF 31
194" 6 Cyl. 1-Bbl. 4°B 4°B 31-34° .016" AC 46N .035" Roch. BV 32
  A.I.R. 194" 6 2°B 4°B 31-34° .016" AC 46N .035" Car. YF 33
230" & 250" 6 1-Bbl. 4°B 4°B 31-34° .016" AC 46N .035" Roch. BV (1) 34
  A.I.R. 230" & 250" 6 4°B 4°B 31-34° .016" AC 46N .035" Car. YF 35
283" V8 2-Bbl. 4°B 4°B 28-32° .016" AC 45 .035" Roch. 2GV 36
  A.I.R. 283" V8 TDC 4°B 28-32° .016" AC 45 .035" Roch. 2GV 37
302" V8 2-Bbl. 6°B (4) ............... 28-32° .016" AC 43 .035" Hol. 4150 38
327" 210 HP 2-Bbl. 2°B 2°B 28-32° .016" AC 44 .035" Roch. 2GV 39
  A.I.R. 210 HP 2°B 2°B 28-32° .016" AC 44 .035" Roch. 2GV 40
327" 275 HP 4-Bbl. 8°B 8°B 28-32° .016" AC 44 .035" Roch. 4MV 41
  A.I.R. 275 HP 6°B 6°B 28-32° .016" AC 44 .035" Roch. 4MV 42
327" 300 HP 4-Bbl. 6°B 6°B 28-32° .016" AC 44 .035" Hol. 4160 43
  A.I.R. 300" HP 6°B 4°A 28-32° .016" AC 44 .035" Hol. 4160 44
327" 325 & 350 HP 4-Bbl. 10°B ............... 28-32° .016" AC 44 .035" Hol. (5) 45
  A.I.R. 325 & 350 HP 10°B ............... 28-32° .016" AC 44 .035" Hol. (5) 46
IGNITION TIMING: B  - BTDC.
A  - ATDC.
SPARK PLUGS: AL  - AUTOLITE.
CH.  - CHAMPION.
CARBURETORS: Car.  - CARTER.
Hol.  - HOLLEY.
Roch.  - ROCHESTER.
Str.  - STROMBERG.
A.I.R. - Air Guard - Thermactor  - Air Injection type Exhaust Emission Control.
C.A.P. - Engine MOD - Imco - CCS.  - Exhaust Emission Control without Air Injection.
No. HOT IDLE FAST IDLE Initial Idle Mixture Remarks
Manual Trans. Auto. Trans. Manual Trans. Auto. Trans.
RPM Cam Step RPM Cam Step
1 600 600 (5) 1400 2nd 1400 2nd 1 1/2 turns
(1) D-R Dwell 31-34° Gap.016". Prestolite Dwell 36-42°, Gap.017-.022"
(2) D-R Dwell 29-31°, Gap.016" Prestolite Dwell 27-32°, Gap.014-.017".
(3) D-R Dwell 29-31°, Gap.016" Prestolite Dwell 27-32°, Gap.014-.019".
(4) Car. RBS with Auto. Trans.
(5) Auto. Trans. in Neutral.
(6) 1550 RPM on later cars.
2 525 525 (5) 1500 (6) 2nd 1500 (6) 2nd 1 1/2 turns
3 600 600 (5) 1500 (6) 2nd 1500 (6) 2nd 1 1/2 turns
4 600 600 (5) 1400 2nd 2000 High 1 1/2 turns
5 525 600 (5) 1400 2nd 1600 2nd 1 1/2 turns
6 600 600 (5) 1800-2000 High 1800-2000 High 1 1/4 turns
7 600 600 (5) 1350 High 1350 High 1 1/4 turns
8 600 600 (5) 1650 2nd 1650 2nd 1 1/2 turns
9 600 600 (5) 1400 2nd 1600 2nd 1 1/2 turns
10 600 600 (5) 2000 High 2000 High 1 1/2 turns
11 600 600 (5) 1400 2nd 1400 2nd 1 1/2 turns
12 600 600 (5) 2000 High 2000 High 1 1/2 turns
13 600 600 (5) 1400 2nd 1600 2nd 1 1/2 turns
14 600 600 (5) 2000 High 2000 High 1 1/2 turns
15 600 600 (5) 1400 2nd 1600 2nd 1 1/2 turns
16 550 (9) 550 (9) (10) .......... (10) .......... 1 1/2 turns
(7) AC 43S for high speed.
(8) Roch. 4MV or Car. AFB.
(9) 600 RPM with Air Cond.
(10) Correct when hot idle set as specified.
17 600 600 (10) .......... (10) .......... 1 1/2 turns
18 550 (9) 550 (9) (10) .......... (10) .......... 1 1/2 turns
19 600 600 (10) .......... (10) .......... 1 1/2 turns
20 550 (9) 550 (9) (10) .......... (10) .......... 1 1/2 turns
21 600 600 (10) .......... (10) .......... 1 1/2 turns
22 550 (9) 550 (9) 600 Low 600 Low 1 1/2 turns
23 600 600 600 Low 600 Low 1 1/2 turns
24 550 (9) 550 (9) 600 Low 600 Low 1 1/2 turns
25 600 600 600 Low 600 Low 1 1/2 turns
26 550 (9) 550 (9) 600 Low 600 Low 1 1/2 turns
27 550 (9) 550 (9) 600 Low 600 Low 1 1/2 turns
28 ............... 480-500 ............... .......... 1700-1750 High 1 1/2 turns  
29 ............... 550 ............... ....... 1700-1750 High 1 1/2 turns
30 500 500 (13) .......... (13) .......... 1 1/2 turns
(11) Car. YF also on 250".
(12) Air Cond. OFF (when used). All others Air Cond. ON.
(13) Correct when hot idle set as specified.
(14) At 750 RPM.
(15) 4150 (325 HP), 4160 (350 HP).
(16) 2200 RPM (325 HP), 2000 RPM (350 HP).
(17) 500 RPM (325 HP), 550 RPM (350 HP).
(18) Roch. 4MV (325 & 385 (HP), Hol. 4160 (350 & 390 HP).
(19) 2000 RPM (Roch.), 2200 RPM (Hol.).
(20) Set at 800 RPM (not idle speed).
31 700 (12) 500 (12) (13) .......... (13) .......... 3 turns
32 500 500 (13) .......... (13) .......... 1 1/2 turns
33 700 (12) 500 (12) (13) .......... (13) .......... 3 turns
34 500 500 (13) .......... (13) .......... 1 1/2 turns
35 700 (12) 500 (12) (13) .......... (13) .......... 3 turns
36 500 500 (13) .......... (13) .......... 1 1/2 turns
37 700 (12) 600 (12) (13) .......... (13) .......... 3 turns
38 800 ............... 2000 High ............... .......... 1 1/2 turns
39 500 600 (13) .......... (13) .......... 1 1/2 turns
40 700 (12) 600 (12) (13) .......... (13) .......... 3 turns
41 500 500 2200 High 2200 High 1 1/2 turns
42 700 (12) 600 (12) 2200 High 2200 High 3 turns
43 500 500 2000 High 2000 High 1 1/2 turns
44 700 (12) 600 (12) 2000 High 2000 High 3 turns
45 700 ............... (16) High ............... .......... 1 1/2 turns
46 750 ............... (16) High ............... .......... 3 turns
ENGINE IGNITION TIMING DISTRIBUTOR SPARK PLUGS CARBURETOR No.
Manual Trans. Auto. Trans. Cam Angle Point Gap Type Gap Make & Type
CHEVROLET (Cont.)                 
350" 295 HP 4-Bbl. 4°B 4°B 28-32° .016" AC 44 .035" Roch. 4MV 47
  A.I.R. 295 HP 4°B 4°B 28-32° .016" AC 44 .035" Roch. 4MV 48
396" 325 & 350 HP 4-Bbl. 4°B 4°B 28-32° .016" AC 43N .035" (8) 49
  A.I.R. 325 & 350 HP 4°B 4°B 28-32° .016" AC 43N .035" (8) 50
396" 375 HP 4-Bbl. 6°B ............... 28-32° .016" AC 43N .035" Hol. 4150 51
427" 385 & 390 HP 4-Bbl. 4°B 4°B 28-32° .016" AC 43N .035" (8) 52
  A.I.R. 385 & 390 HP 4°B 4°B 28-32° .016" AC 43N .035" (8) 53
427" 400 HP 3 x 2 Bbl. 4°B 4°B 28-32° .016" AC 43N .035" Hol. 2300 54
  A.I.R. 400 HP 4°B 4°B 28-32° .016" AC 43N .035" Hol. 2300 55
427" 425 HP 4-Bbl. 12°B (10) ............... 28-32° .016" AC 43N .035" Hol. 4150 56
427" 435 HP 3 x 2 Bbl. 5°B ............... 28-32° .016" AC 43N .035" Hol. 2300 57
  A.I.R. 435 HP 5°B ............... 28-32° .016" AC 43 N .035" Hol. 2300 58
CHRYSLER CORP.                 
170" 6 Cyl. 1-Bbl. 5°B 5°B 40-45° .017-.023" CH. N14Y .035" Car. BBS 59
  C.A.P. 170" 6 5°A 5°A 40-45° .017-.023" CH. N-14Y .035" Car. BBS 60
225" 6 Cyl. 1-Bbl. 5°B TDC 40-45° .017-.023" CH. N-14Y .035" Car. BBS (1) 61
  C.A.P. 225" 6 5°B TDC 40-45° .017-.023" CH. N-14Y .035" Car. BBS (1) 62
273" V8 2-Bbl. 5°B 10°B 28-33° .014-.019" CH. N-14Y .035" Car. BBD 63
  C.A.P. 273" 2-Bbl. 5°A 5°A 28-33° .014-.019" CH. N-14Y .035" Car. BBD 64
273" V8 4-Bbl. 10°B 10°B 27-31°(4) .014-.019" CH. N-10Y .035" Car. AFB 65
  C.A.P. 273" 4-Bbl. 5°A 5°A 27-31°(4) .014-.019" CH. N-10Y .035" Car. AFB 66
318" V8 2-Bbl. 5°B 10°B 28-33° .014-.019" CH. N-14Y(3) .035" Str. WW (9) 67
  C.A.P. 318" 2-Bbl. 5°A 5°A 28-33° .014-.019" CH. N-14Y(3) .035" Str. WW (9) 68
383" V8 2-Bbl. 12 1/2°B 12 1/2°B 28-33° .014-.019" CH. J-14Y .035" Car. BBD (10) 69
  C.A.P. 383" 2-Bbl. TDC 5°B 28-33° .014-.019" CH. J-14Y .035" Car. BBD 70
383" V8 4-Bbl. 12 1/2°B 12 1/2°B 28-33° .014-.019" CH. J-13Y(5) .035" Car. AFB 71
  C.A.P. 383" 4-Bbl. TDC 5°B 28-33° .014-.019" CH. J-13Y(5) .035" Car. AFB 72
426" Hemi. 2 x 4-Bbl. 12 1/2°B; 12 1/2°B 27-31°(4) .014-.019" CH. N-10Y .035" (2)Car. AFB 73
  C.A.P. 426" Hemi. 12 1/2°B 12 1/2°B 27-31°(4) .014-.019" CH. N-10Y .035" (2) Car. AFB 74
440" V8 4-Bbl. 12 1/2°B 12 1/2°B 28-33° .014-.019" CH. J-13Y .035" (8) 75
  C.A.P. 440" V8 TDC 5°B 28-33° .014-.019" CH. J-13Y .035" (8) 76
440" High Perf. 4-Bbl. 12 1/2°B 12 1/2°B 28-33°(7) .014-.019" CH. J-11Y .035" Car. AFB 77
  C.A.P. 440" H.P. TDC 5°B 28-33°(7) .014-.019" CH. J-11Y .035" Car. AFB 78
CORVAIR                 
95 H.P. Std. 6°B 14°B 31-34° .019" AC 46FF .035" Roch. HV 79
  A.I.K. 95 H.P. TDC TDC 31-34° .019" AC 44FF .035" Roch. HV 80
110 HP (No A/C) 14°B 14°B 31-34° .019" AC 44FF .030" Roch. HV 81
110 HP (With A/C)   24°B 31-34° .019" AC 44FF .030" Roch. HV 82
  A.I.R. 110 HP 4°B 4°B 31-34° .019" AC 44FF .030" Roch. HV 83
FORD MOTOR CO.                 
170" 6 Cyl. 1-Bbl. 6°B 12°B 37-42° .025" AL. BF-82 .032-.036" Ford 1100 84
  Thermactor TDC TDC 37-42° .025" AL. BF-82 .032-.036" Ford 1100 85
  Imco ............... 3°B 37-42° .025" AL. BF-82 .032-.036" Car. YF 86
200" 6 Cyl. 1-Bbl. 6°B 12°B 37-42° .025" AL. BF-82 .032-.036" Ford 1100 87
  Thermactor 5°B 5°B 37-42° .025" AL. BF-82 .032"-.036" Ford 1100 88
  Imco ............... 5°B 37-42° .025" AL. BF-82 .032-.036" Car. YF 89
240" 6 Cyl. 1-Bbl. 6°B 10°B 37-42° .025" AL. BF-42(1) .032-.036" Ford 1100 90
  Thermactor TDC 4°B 37-42° .025" AL. BF-42(1) .032-.036" Ford 1100 91
289" V8 2-Bbl. 6°B 6°B 26-31° .017" AL. BF-42 .032-.036" Ford 2100 92
  Thermactor TDC TDC (1) 26-31° .017" AL. BF-42 .032-.036" Ford 2100 93
289" V8 4-Bbl. 6°B 6°B- 26-31° .017" AL. BF-42 .032-.036" Ford 4300 94
  Thermactor TDC TDC 26-31° .017" AL. BF-42 .032-.0361 Ford 4300 95
IGNITION TIMING: B  - BTDC.
A  - ATDC.
SPARK PLUGS: AL  - AUTOLITE.
CH.  - CHAMPION.
CARBURETORS: Car.  - CARTER
Hol.  - HOLLEY.
Roch.  - ROCHESTER.
Str.  - STROMBERG
A.I.R. - Air Guard - Thermactor  - Air Injection type Exhaust Emission Control
C.A.P. - Engine MOD - Imco - C.C.S.  - Exhaust Emission Control without Air Injection
No. HOT IDLE FAST IDLE Initial Idle Mixture Remarks
Manual Trans. Auto. Trans. Manual Trans. Auto. Trans.
RPM Cam Step RPM Cam Step
47 500 500 2200 High 2200 High 1 1/2 turns  
48 700 500 2200 High 2200 High 3 turns
49 (7) (7) 2000 High 2000 High 1 1/2 turns
50 700 500 2000 High 2000 High 3 turns
51 750 .................. 2200 High ............... .......... 1 1/2 turns
52 550 550 (9) High (9) High 1 1/2 turns
53 700 (2) 550 (9) High (9) High 3 turns
54 750 600 2200 High 2200 High 1 1/2 turns
55 750 (2) 600 (2) 2200 High 2200 High 3 turns
56 1000 .................... 2200 High ............... .......... 1 1/2 turns
57 750 .................... 2200 High ............... .......... 1 1/2 turns
58 750 .................... 2200 High ............... .......... 3 turns
59 550 550 (2) 700 Low 700 Low 1-2 turns
(1) Hol. 1920 also used.
(2) Auto. Trans. in Neutral.
(3) CH. J-14Y on Can. Eng. (Distr. 2444760 & 61).
(4) Each set (double breaker) 36-40° (both sets together).
(5) CH. J-11Y (Police).
(6) Auto. Trans. in Neutral Air Cond. OFF.
(7) Man. Trans. Double breaker 27-31° (each), 36-40° (both sets together).
(8) Hol. 4160 (Man. Trans.), Car. AFB (Auto. Trans. & all C.A.P.).
(9) Car. BBD (Canada).
(10) Str. WWC on some Auto. Trans. cars.
(11) Adjust for final Air/Fuel Ratio using Exhaust Gas Analyzer.
60 700 650 (2) 1550 2nd 1900 2nd (11)
61 550 550 (2) 700 Low 700 Low 1-2 turns
62 650 650 (2) 1550 2nd 1550 2nd (11)
63 500 500 (2) 700 Low 700 Low 1 turn
64 700 650 (6) 1400 2nd 1500 2nd (11)
65 600 600 (2) 625 Low 700 Low 1 1/2 turn
66 700 650 (2) 1500 2nd 1600 2nd (11)
67 650 600 (6) 700 Low 700 Low 1 1/4 turns
68 650 600 (2) 1400 2nd 1400 2nd (11)
69 550 550 (2) 700 Low 700 Low 1 turn
70 650 600 (2) 1700 2nd 1400 2nd (11)
71 500 500 (2) 700 Low 700 Low 1 1/2 turn
72 650 600 (2) 1400 2nd 1400 2nd (11)
73 750 ............... 1500 2nd 1500 2nd 1 1/2 turn
74 ............... ............... 1800 Low 1800 Low (11)
75 550 550 700 Low 700 Low 1 1/2 turn
76 650 650 1400 2nd 1400 2nd 1 1/2 turn
77 650 650 (2) 800 Low 700 Low 1 1/2 turn
78 650 650 1600 2nd 1400 2nd 1 1/2 turn
79 500 (12) 500 (12) (14) 2nd (14) 2nd 1 turn
(12) Adjust to increase idle 50 RPM when Air Cond. ON.
(13) With Air Cond. OFF. See 1
(14) .075" clearance between Idle Speed Screw and Throttle Lever on 2nd. step.
80 700 (12) 500 (13) (14) 2nd (14) 2nd 1 turn
81 650 (13) 500 (13) (14) 2nd (14) 2nd 1 turn
82 650 (12) 500 (12) (14) 2nd (14) 2nd 1 turn
83 700 (13) 600 (13) (14) 2nd (14) 2nd 1 turn
84 575 500 1300 High 1500 High 1 1/2 turn
(15) 6°B on cars beginning with Change 15 (last figure on top line of ident. tag).
(16) Correct when hot idle set as specified.
85 750 550 1400 High 1500 High 1 1/2 turn
86 .................. 550 .......... ..... (16) ........ 1 1/2 turn
87 575 500 1300 High 1500 High 1 1/2 turn
88 700 550 1400 High 1500 High 1 1/2 turn
89 .................. 550 ............... .......... (16) ........ 1 1/2 turn
90 525 500 1500 High 1600 High 1 1/2 turn
91 600 500 1500 High 1600 High 1 1/2 turn
92 575 475 1400 High 1600 High 1 1/2 turn
93 625 550 1400 High 1600 High 1 1/2 turn
94 600 525 1200 High 1350 High 1 1/2 turn
95 625 550 ............... .......... ............... .......... 1 1/2 turn
ENGINE IGNITION TIMING DISTRIBUTOR SPARK PLUGS CARBURETOR No.
Manual Trans. Auto. Trans. Cam Angle Point Gap Type Gap Make & Type
FORD MOTOR CO. (Cont.)                 
289" Hi Perf. 4-Bbl. 12°B ............... 30-33° .020" AL. BF-32 .032-.036" Ford 4100 96
  Thermactor     30-33° .020" AL. BF-32 .032-.036" Ford 4100 97
390" V8 2-Bbl. 10°B 10°B 26-31° .017" AL. BF-32 .032-.036" Ford 2100 98
  Thermactor 6°B 6°B 26-31° .017" AL. BF-32 .032-.036" Ford 2100 99
390" V8 4-Bbl. 10°B 10°B 26-31° .017" AL. BF-32 .032-.036" Ford 4300 100
  Thermactor 6°B 6°B 26-31° .017" AL. BF-32 .032-.036" Ford 4300 101
390" V8 GT 4-Bbl. 12°B 12°B 26-31° .017" AL. BF-32 .032-.036" Hol. 4150C 102
  Thermactor 6°B 6°B 26-31° .017" AL. BF-32 .032-.036" Hol. 4150C 103
410" V8 4-Bbl. 10°B 10°B 26-31° .017" AL. BF-32 .032-.036" Ford 4300 104
  Thermactor 6°B 6°B 26-31° .017" AL. BF-32 .032-.036" Ford 4300 105
  Imco ............... 6°B 26-31° .017" AL. BF-32 .032-.036" Ford 4300 106
427" V8 4-Bbl. 8°B ............... 22-24° .028" AL. BF-32 .032-.036" Hol. 4160 107
427" V8 2 x 4-Bbl. 8°B ............... 22-24° .028" AL. BF-32 .032-.036" (2)Hol. 4160 108
428" V8 4-Bbl. 10°B 10°B 26-31° .017" AL. BF-32 .032-.036" Ford 4300 109
  Thermactor 6°B 6°B 26-31° .017" AL. BF-32 .032-.036" Ford 4300 110
428" Police 4-Bbl. 12°B 12°B 26-31° .017" AL. BF-32 .032-.036" Ford 4100 111
  Thermactor 12°B 12°B 26-31° .017" AL. BF-32 .032-.036" Ford 4100 112
462" V8 Lincoln ............... 10°B 26-31° .017" AL. BTF-42 .032-.036" Car. AFB 113
  Thermactor ............... 10°B 26-31° .017" AL. BTF-42 .032-.036" Car. AFB 114
JEEP                 
L4 & J4 4 Cyl. (1) (1) 42° .020" Ch. J-8 .030" Car. YF 115
232" 6 Cyl. (2) (2) 31-34° .016" Ch. H-14Y .035" Car. RBS 116
OHC. 6 Cyl. 5°B 5°B 38° .020" Ch. L-12Y .030" Hol. (5) 117
225" V6 (3) (3) (4) .016" AC 44S .035" Roch. (6) 118
327" V8 5°B 5°B 28-32° .016" Ch. H-14Y .035" Hol. 2209 119
OLDSMOBILE                 
250" 6 Cyl. 1-Bbl. 4°B 4°B 31-34° .019" AC 46N .030" Roch. MV 120
  A.I.R. 250" 6 4°B 4°B 28-32° .019" AC 46N .030" Car. YF 121
330" V8 2 & 4-Bbl. 7 1/2°B (3) 7 1/2°B (3) 28-32° .016" AC 44S(4) .030" Roch. (6) 122
  A.I.R. 330" V8 7 1/2°B (3) 7 1/2°B (3) 28-32° .016" AC 44S(4) .030" Roch. (6) 123
400" V8 2 & 4-Bbl. 7 1/2°B (3) 7 1/2°B (3) 28-32° .016" AC 44S .030" Roch. (6) 124
  A.I.R. 400" V8 7 1/2°B (3) 7 1/2°B (3) 28-32° .016" AC 44S .030" Roch. (6) 125
425" L.C. V8 2-Bbl. 7 1/2°B (3) 7 1/2°B (3) 28-32° .016" AC 45S .030" Roch. 2GC 126
  A.I.R. 7 1/2°B (3) 7 1/2°B (3) 28-32° .016" AC 45S .030" Roch. 2GC 127
425" H.C. V8 2-Bbl. 5°B (3) 5°B (3) 28-32° .016" AC 44S .030" Roch. 2GC 128
  A.I.R. 5°B (3) 5°B (3) 28-32° .016" AC 44S .030" Roch. 2GC 129
425" V8 4-Bbl. 7 1/2°B (3) 7 1/2°B (3) 28-32° .016" AC 44S .030" Roch. 4MV 130
  A.I.R. & CCS. 7 1/2°B (3) 7 1/2°B (3) 28-32° .016" AC 44S .030" Roch. 4MV 131
PONTIAC                 
230" 6 Cyl. 1-Bbl. 5°B 5°B 31-34° .019" AC 44N .035" Roch. BV 132
  A.I.R. TDC TDC 31-34° .019" AC 44N .035" Roch. BV 133
230" 6 Cyl. 4-Bbl. 5°B 5°B 31-34° .019" AC 44N .035" Roch. 4MV 134
  A.I.R. 5°B 5°B 31-34° .019" AC 44N .035" Roch. 4MV 135
326" V8 2 & 4 Bbl. 6°B 6°B 28-32° .016" AC 45S .035" (2) 136
  A.I.R. or CCS. 6°B 6°B 28-32° .016" AC 45S .035" (2) 137
400" V8 2 & 4 Bbl. 6°B 6°B 28-32° .016" AC 45S .035" (2) 138
  A.I.R. or CCS. 6°B 6°B 28-32° .016" AC 45S .035" (2) 139
326" & 400" G.T.O. 6°B 6°B 28-32° .016" AC 44S .035" Car. AFB 140
  A.I.R. 6°B 6°B 28-32° .016" AC 44S .035" Car. AFB 141
428" V8 4-Bbl. 6°B 6°B 28-32° .016" AC 44S .035" Roch. 4MV 142
  A.I.R. 6°B 6°B 28-32° .016" AC 44S .035" Roch. 4MV 143

IGNITION TIMING: B  BTDC. A  - ATDC.

SPARK PLUGS: AL  - AUTOLITE. CH.  - CHAMPION.

CARBURETORS: Car.  - CARTER Hol.  - HOLLEY. Roch.  - ROCHESTER. Str.  - STROMBERG

A.I.R. - Air Guard - Thermactor  - Air Injection type Exhaust Emission Control

C.A.P. - Engine MOD - Imco - C.C.S.  - Exhaust Emission Control without Air Injection

No. HOT IDLE FAST IDLE Initial Idle Mixture Remarks
Manual Trans. Auto. Trans. Manual Trans. Auto. Trans.
RPM Cam Step RPM Cam Step
96 750 650 1400 High 1500 High 1 1/2 turn  
97 750 650   High 1500 High 1 1/2 turn
98 575 475 1300 2nd 1400 2nd 1 1/2 turn
99 625 550 1300 2nd 1500 2nd 1 1/2 turn
100 575 475 1300 2nd 1400 2nd 1 1/2 turn
101 625 550 1300 2nd 1400 2nd 1 1/2 turn
102 600 525 2100 High 2100 High 1 1/2 turn
103 625 550 2100 High 2100 High 1 1/2 turn
104 575 475 1300 2nd 1300 2nd 1 1/2 turn
105 625 550 1300 2nd 1400 2nd 1 1/2 turn
106 ............... 550 ............... 2nd 1200 2nd 1 1/2 turn
107 750 ............... ............... .......... ............... .......... 1 1/2 turn
108 750 ............... 2100 .......... ............... .......... 1 1/2 turn
109 575 475 1300 2nd 1200 2nd 1 1/2 turn
110 625 550 1200 2nd 1500 2nd 1 1/2 turn
111 600 600 1200 2nd 1300 2nd 1 1/2 turn
112 625 550 1300 2nd 1500 2nd 1 1/2 turn
113 ............... 475 ............... .......... 1600 2nd 1 1/2 turn
114 ............... 500 ............... .......... 1600 2nd 1 1/2 turn
115 600 600 ............... .......... ............... .......... ...............
(1) 5°B (L4 & F4 with 1AY-4401 Distr.) TDC (F4 & 1 1AY-4401A, B Distr.).
(2) 5°B (Distr. 1110340), TDC (Distr. 1110366 & 444).
(3) 5°B (Distr. 1110376, 1AY-4501, 2). TDC (Distr. 1AT-4502A).
(4) Cam Angle 29-31° (D-R), 29°±3° (Prestolite).
(5) Hol. 1920 or 2300.
(6) Roch. BC, 2G, or 2GC.
(7) 650-700 RPM on A.I.R. cars.
(8) No adjustment.
116 550 (7) 500 (7) (8) .......... (8) .......... ...............
117 590-600 590-600 2100 2nd 2100 2nd ...............
118 500 (7) 500 (7) (8) .......... (8) .......... ...............
119 550 (7) 500 (7) 1800 High 1800 2nd ...............
120 500 (1) 500 (1) (12) .......... (12) .......... 1 1/2 turn (1) With Air Cond. ON
(12)Correct when hot idle set
(13)Set at 850 RPM.
(14)AC 455 on L.C. (9.0-1 325 HP Engines).
(15)75 RPM higher on Air Cond. cars (Air Cond. OFF).
(16)Roch. 2GC or 4 MV.
(17)50 RPM higher on Air Cond. Cars. (Air Cond. OFF).
(18)500 RPM with Comfortron ON (when used).
(9) 900 RPM (2-Bbl), 700 RPM (4-Bbl.)
(10) 800 RPM with Comfortron ON
121 700 500 (1) (12) .......... (12) .......... 1 1/2 turn
122 600 500 (15) (9) Low (9) Low 1 1/2 turn
123 650 600 (9) Low (9) Low 1 1/2 turn
124 600 550 (17) (9) Low (9) Low 1 1/2 turn
125 650 600 (9) Low (9) Low 1 1/2 turn
126 550 (18) 500 (18) 900 Low 900 Low 1 1/2 turn
127 600 (18) 500 (18) 900 Low 900 Low 1 1/2 turn
128 550 (18) 500 (18) 900 Low 900 Low 1 1/2 turn
129 600 (18) 500 (18) 900 Low 900 Low 1 1/2 turn
130 ............... 500 (18) 700 (10) Low 700 (10) Low 2 turns
131 ............... 500 (18) 700 (10) Low 700 (10) Low 2 turns
132 600 (9) 500 (9) 2600 High 2800 High 1 1/2 turn
(9) Adjust Idle Speed-Up to maintain Idle Speed (600 RPM with Auto. Trans) with Air Cond. ON.
(10) Roch. 2GC or 4MV.
(11) 100 RPM higher with Air Cond. (Air Cond. OFF).
133 700 (9) 600 (9) 2600 High 2800 High 1 1/2 turn
134 600 500 2600 High 2800 High 1 1/2 turn
135 700 600 2600 High 2800 High 1 1/2 turn
136 600 3 500 (11) 2600 High 2800 High 1 1/2 turn
137 700 600 2500 High 2500 High 1 1/2 turn
138 600 (11) 500 (11) 2500 High 2800 High 1 1/2 turn
139 700 600 2500 High 2500 High 1 1/2 turn
140 700 600 2500 High 2500 High 2 turns
141 700 600 2500 High 2500 High 2 turns
142 700 600 2500 High 2500 High 2 turns
143 700 600 2500 High 2500 High 2 turns
Jeep Additional Footnotes: 
(12) 5 ° B (Distr. 0340), TDC (Distr. 11110366 & 444).
(13) 5 ° B (Distr. 11110376, 1AY4501, 2), TDC (Distr. IAT4502A).
(14) Cam Angle 29-31 ° (D-R), 29° ± 3 ° (Prestolite).
(15) Hol. 1920 or 2300.
(16) Roch. BC, 2G, or 2GC.
(17) 650-700 RPM on A.I.R. cars.
(18) No adjustment.
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