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Tune-Up Specifications

ENGINE IGNITION TIMING DISTRIBUTOR SPARK PLUGS CARBURETOR No.
Man. Trans. Auto. Trans. Cam Angle Point Gap Type Gap Make & Type
AMERICAN MOTORS                 
232" & 258" 6 Cyl. 1-Bbl.                
  Federal W/O EGR 5°B 5°B 31-34° .016" CH-N12Y .035" Car. YF 1
  Cal./Fed. W/EGR 5°B 5°B 31-34° .016" CH-N12Y .035" Car. YF 2
304" V8 2-Bbl.                
  Federal .... 5°B 29-31° .016" CH-N12Y .035" Ford 2100 3
  Calif. 5°B 2.5°B 29-31° .016" CH-N12Y .035" Ford 2100 4
360" V8 2-Bbl. 5°B 5°B 29-31° .016" CH-N12Y .035" Ford 2100 5
360" V8 4-Bbl. 5°B 5°B 29-31° .016" CH-N12Y .035" Ford 4300 6
401" V8 4-Bbl.                
  Federal 5°B 5°B 29-31° .016" CH-N12Y .035" Ford 4300 7
  Calif. .... 5°B 29-31° .016" CH-N12Y .035" Ford 4300 8
BUICK                 
250" 6 Cyl. 1-Bbl. 8°B(2) 6°B(1) 31-34° (1) ACR46T .035" Roch. MV 9
350" V8 2-Bbl. .... 4°B(1) 28-32° .016" ACR45TS .040" Roch. 2GV 10
350" V8 4-Bbl. .... 4°B(1) 28-32° .016" ACR45TS .040" Roch. 4MV 11
455" V8 2-Bbl. .... 4°B(1) 28-32° .016" ACR45TS .040" Roch. 2GV 12
455" V8 4-Bbl. .... 4°B(1) 28-32° .016" ACR45TS .040" Roch. 4MV 13
455" Stage 1 .... 10°B(1) 28-32° .016" ACR45TS .040" Roch. 4MV 14
CADILLAC                 
472" & 500" V8 4-Bbl. .... 10°B 30°±2° (1) ACR45NS .035" Roch. 4MV 15
CHEVROLET                 
140" 4 Cyl. 1-Bbl. 10°B 12°B 31-34° (1) ACR42TS .035" Roch. MV 16
140" 4 Cyl. 2-Bbl. 10°B 12°B 31-34° (1) ACR42TS .035" Hol. 5210-C 17
250" 6 Cyl. 1-Bbl. 8°B 6°B 31-34° .019" ACR46T .035" Roch. MV 18
350" V8 2-Bbl. TDC 8°B 29-31° .019" ACR44T .035" Roch. 2GV 19
350" V8 4-Bbl.                
  Federal 8°B 8°B 29-31° (1) ACR44T .035" Roch. 4MV 20
  Calif. 4°B 8°B 29-31° (1) ACR44T .035" Roch. 4MV 21
350" V8 4-Bbl. 8°B 8°B 29-31° (1) ACR44T .035" Roch. 4MV 22
400" V8 2-Bbl. .... 8°B 29-31° .019" ACR44T .035" Roch. 2GV 23
400" V8 4-Bbl. .... 8°B 29-31° .019" ACR44T .035" Roch. 4MV 24
454" V8 4-Bbl. 10°B 10°B 29-31° (1) ACR44T .035" Roch. 4MV 25
CHRYSLER CORP.                 
198" 6 Cyl. 1-Bbl. 2 1/2°B(1) 2 1/2°B(1) (2) .008"(6) CHN14Y .035" Hol. 1945 26
225" 6 Cyl. 1-Bbl. TDC(1) TDC(1) (2) .008"(6) CHN14Y .035" Hol. 1945 27
318" V8 2-Bbl. TDC(1) TDC(1) (2) .008"(6) CHN13Y .035" Car. BBD 28
360" V8 2-Bbl.                
  Federal .... 5°B(1) (2) .008"(6) CHN12Y .035" Hol. 2245 29
360" V8 4-Bbl.                
  Calif. .... 5°B(1) (2) .008"(6) CHN12Y .035" Car. T.Q. 30
360" V8 4-Bbl.                
  H.P. Federal 5°B(1) 5°B(1) (2) .008"(6) CHN12Y .035" Car. T.Q. 31
  H.P. Calif. 2 1/2°B(1) 5°B(1) (2) .008"(6) CHN12Y .035" Car. T.Q. 32
400" V8 2-Bbl. .... 7 1/2°B(3) (2) .008"(6) CHJ13Y .035" Hol. 2245 33
400" V8 4-Bbl. .... 5°B(1) (2) .008"(6) CHJ13Y .035" Car. T.Q. 34
400" V8 4-Bbl.                
  H.P. Federal 5°B(1) 2 1/2°B(1) (2) .008"(6) CHJ11Y .035" Car. T.Q. 35
  H.P. Calif. .... 2 1/2°B(1) (2) .008"(6) CHJ11Y .035" Car. T.Q. 36
440" V8 4-Bbl. .... 10°B(1) (2) .008"(6) CHJ11Y .035" Car. T.Q. 37
440" V8 4-Bbl.                
  Hi Perf. .... 10°B(1) (2) .008"6 CHJ11Y .035" Car. T.Q. 38
IGNITION TIMING: B  - BTDC.
A  - ATDC.
SPARK PLUGS: AL  - Autolite.
CH  - Champion.
CARBURETORS: Car.  - Carter.
Hol.  - Holley.
Roch.  - Rochester.
No. HOT IDLE FAST IDLE IDLE CO % AIR FUEL RATIO REMARKS
Man. Trans. Auto. Trans. Man. Trans. Auto. Trans.
RPM Cam Step RPM Man Auto
1 700±50 600 ±50 1600 2nd 1600 (2) (2) ...
(1) All Calif. Man. Trans. 600±50 and Auto. Trans. 700±50.
(2) If equipped with A.I.R. CO level should be.5-1.0%. Without A.I.R. CO level should be 1.0-1.5%.
2 600±50(1) 550±50(1) 1600 2nd 1600 (2) (2) ...
3 750±50 700±50 1600 2nd 1600 (2) (2) ...
4 750±50 700±50 1600 2nd 1600 (2) (2) ...
5 750±50 700 ±50 1600 2nd 1600 (2) (2) ...
6 750±50 700±50 1600 2nd 1600 (2) (2) ...
7 750±50 700±50 1600 2nd 1600 (2) (2) ...
8 750±50 700±50 1600 2nd 1600 (2) (2) ...
9 450/950 450/600 1800 High 1800 .3 .3 (5)
(3) .019" for new points..016" for used points.
(4) Ignition Timing ± 2°.
(5) See Engine Tune-Up Decal.
10 .... 500/650 .... 2nd 700 ... .3 (5)
11 .... 500/650 .... Low 700 ... .3 (5)
12 .... 500/650 .... 2nd 700 ... .3 (5)
13 .... 500/650 .... Low 700 ... .3 (5)
14 .... 500/650 .... Low 700 ... .3 (5)
15 .... 600 ... 2nd 1225 ... .4 ...
(6) Point gap correct when dwell set to 30°.
16 1000/700 750/550 2000 High 2200 .5 .5 ...
(7) .019" for new points and.016" for used points.
17 700/1200 500/750 2000 High 2200 .5 .5 ...
18 850/450 600/450 1800 High 1800 .3 .3 ...
19 500/900 500/600 1600 High 1600 .5 .5 ...
20 500/900 500/600 1300 High 1600 .5 .5 ...
21 500/900 500/600 1300 High 1600 .5 .5 ...
22 500/900 500/700 1300 High 1600 .5 .5 ...
23 .... 500/600 .... High 1600 .5 .5 ...
24 .... 500/600 .... High 1600 .5 .5 ...
25 500/800 500/600 1600 High 1500 .5 .5 ...
26 800 750 1600 2nd 1800 (12) (12) 14.2
(8) Ignition timing ±2°.
(9) Electronic Ignition (not adjustable).
(10) Sta. Wagons 5°±2°.
(11) Calif. 750 RPM.
(12) See Engine Tune-Up Decal.
(13) Electronic Ignition (Air Gap).
27 800 750 1600 2nd 1800 (12) (12) 14.2
28 750 750 1700 2nd 1500 (12) (12) 14.2
29 .... 750 .... 2nd 1800 ... (12) 14.2
30 .... 750 .... 2nd 1800 ... (12) 14.2
31 850 850 1900 2nd 1900 (12) (12) 14.2
32 850 850 1900 2nd 1900 (12) (12) 14.2
33 .... 750 .... 2nd 1600 ... (12) 14.2
34 .... 900(11) .... 2nd 2000 ... (12) 14.2
35 900 900 1700 2nd 1800 (12) (12) 14.2
36 .... 850 .... 2nd 1800 ... (12) 14.2
37 .... 750 .... 2nd 1700 ... (12) 14.2
38 .... 800 .... 2nd 1700 ... (12) 14.2
ENGINE IGNITION TIMING DISTRIBUTOR SPARK PLUGS CARBURETOR No.
Man. Trans. Auto. Trans. Cam Angle Point Gap Type Gap Make & Type
FORD MOTOR CO.                 
2000 4 Cyl. 2-Bbl. 6°B 6°B 37-41° .025" ALBRF-42 .034" Ford 5200 39
2300 4 Cyl. 2-Bbl. 6°B 6°B 37-41° .025" ALAGRF-52 .034" Ford 5200 40
2800 V6 2-Bbl. 12°B 12°B 37-41° .025" ALAGR-42 .034" Ford 5200 41
200" 6 Cyl. 1-Bbl. 6°B 6°B 35-39° .027" ALBRF-82 .034" Car. YF 42
250" 6 Cyl. 1-Bbl. 6°B 6°B 35-39°(12) .027"(12) ALBRF-82 .044" Car. RBS 43
302" V8 2-Bbl.                
  Comet, Maverick                
    Federal 6°B 6°B 24-30°(12) .017"(12) ALBRF-42 .035" Ford 2100D 44
    Calif. 6°B 6°B 24-30°(12) .017"(12) ALBRF-42 .044" Ford 2100D 45
  Torino, Montego                
    Federal 10°B 6°B 24-30°(12) .017"(12) ALBRF-42 .035" Ford 2100D 46
    Calif. 10°B 6°B 24-30°(12) .017"(12) ALBRF-42 .044" Ford 2100D 47
351" W V8 2-Bbl.                
  Ford .... 6°B 24-30° .017" ALBRF-42 .044" Ford 2100D 48
  All Others .... 6°B 24-30° .017" ALBRF-42 .034" Ford 2100D 49
351" C V8 2-Bbl. .... 14°B 26-30°(21) .017"(12) ALARF-42 .044" Ford 2100D 50
351" C V8 4-Bbl.                
  Single Points .... 20°B 26-30° .017" ALARF-42 .034" Ford 4300 51
  Dual Points 20° B ... 32-35° .020" ALARF-42 .034" Ford 4300 52
400" V8 2-Bbl. .... 12°B (1) (1) ALARF-41 .044" Ford 2100D 53
460" V8 4-Bbl. .... 14°B (1) (1) ALARF-52 .054" Ford 4300(11) 54
460" V8 Police .... 10°B (1) (1) ALARF-52 .054" Ford 4300 55
JEEP                 
232" 6 Cyl. 1-Bbl. 5°B(1) ... 31-34° .016" CHN-12Y .035" Car. YF 56
258" 6 Cyl. 1-Bbl. 3°B(1) 3°B(1) 31-34° .016" CHN-12Y .035" Car.YF 57
304" V8 2-Bbl. 5°B(1) ... 29-31° .016" CHN-12Y .035" Ford 2100 58
360" V8 2-Bbl. 5°B(1) 5°B(1) 29-31° .016" CHN-12Y .035" Ford 2100 59
360" V8 4-Bbl. 5°B(1) 5°B(1) 29-31° .016" CHN-12Y .035" Ford 4300 60
401" V8 4-Bbl. 5°B(1) 5°B(1) 29-31° .016" CHN-12Y .035" Ford 4300 61
401" Heavy Duty 2.5°B(1) 2.5°B(1) 29-31° .016" CHN-12Y .035" Ford 4300 62
OLDSMOBILE                 
250" 6 Cy. 1-Bbl. 8°B 8°B 31-34° (1) ACR46TS .035" Roch. MV 63
350" V8 4-Bbl. .... 12°B 28-32° (1) ACR46S .040" Roch. 4MC 64
455" V8 4-Bbl.                
  Cutlass .... 14°B 31-34° (1) ACR45S .040" Roch. 4MC 65
  Toronado .... 10°B 31-34° (1) ACR46S .040" Roch. 4MC 66
  All Others .... 8°B 31-34° (1) ACR46S .040" Roch. 4MC 67
PONTIAC                 
250" 6 Cyl. 1-Bbl. 6°B 6°B 32.5° .016" AC-R46T .035" Roch. MV 68
350" V8 2-Bbl.                
  Federal 10°B 12°B 30° (1) AC-R46TS .040" Roch. 2GC 69
  Calif. .... 12°B 30° (1) AC-R46TS .040" Roch. 2GC 70
350" V8 4-Bbl.                
  Federal 10°B 12°B 30° .019" AC-R46TS .040" Roch. 4MC 71
  Calif. .... 10°B 30° .019" AC-R46TS .040" Roch. 4MC 72
400" V8 2-Bbl.                
  Federal .... 12°B 30° .019" AC-R46TS .040" Roch. 2GC 73
  Calif. .... 10°B 30° .019" AC-R46TS .040" Roch. 2GC 74
400" V8 4-Bbl.                
  Federal 10°B 12°B 30° (1) AC-R45TS .040" Roch. 4MV 75
  Calif. ..., 10°B 30° (1) AC-R45TS .040" Roch. 4MV 76
455" V8 4-Bbl.                
  Federal .... 12°B 30° .019" AC-R46TS .040" Roch. 4MC 77
  Calif. .... 10°B 30° .019" AC-R46TS .040" Roch. 4MC 78
455" V8 4-Bbl. SD 10°B 12°B 30° (1) AC-R44TS .040" Roch. 4MC 79
IGNITION TIMING: B  - BTDC.
A  - ATDC.
CARBURETORS: Car.  - Carter.
Roch.  - Rochester.
SPARK PLUGS: AL  - Autolite.
CH  - Champion.
No. HOT IDLE FAST IDLE IDLE CO % AIR FUEL RATIO REMARKS
Man. Trans. Auto. Trans. Man. Trans. Auto. Trans.
RPM Cam Step RPM Man Auto
39 750 ±25 650 1600 (2) 1600 1-1.5 (2) (2)
(1) Equipped with Solid State Ignition.
(2) Refer to Engine Compartment Tune-Up Decal.
(3) Federal.2-.5% Calif..5-1.0%
(4) Calif..2-1.5%
(5) Calif..2-1.0%
(6) Federal.2% Max.
(7) Federal 625 Calif. 650±10
(8) Calif..4% Max.
(9) Federal 650±15 Calif. 675±10
(10) Federal.05-.25% Calif..10-.25%
(11) Calif. vehicles use Carter Thermo-Quad.
(12) Some models equipped with Solid State Ignition and no adjustments are required.
40 750 750±25 1600 (2) 1600 (2) .12-.25 (2)
41 750 650 ±25 1700 (2) 1700 (2) (3) (2)
42 750 550±50 2000 (2) 2000 (2) (2)(4) (2)
43 750 600±50 1400 (2) 1400 (2) (2)(5) (2)
44 800 650 1250 (2)(2) 1400 (2) (2) (2)
45 .... 650±25 (2) (2) (2) ... .1.25 (2)
46 800 625 1250 (2) 1400 (2) (2) (2)
47 .... 650±25 (2) (2) (2) ... .1-.25 (2)
48 .... 600 1500 (2) 1500 ... (2) (2)
49 .... 600 1350 (2) 1350 ... (2) (2)
50 .... 650±10 1500 (2) 1500 ... .4 (2)
51 .... 800±25 (2) (2) (2) ... (2)(6) (2)
52 (2) .... (2) (2) (2) (2) .2 (2)
53 .... (7) .... (2) 1500 ... (2)(8) (2)
54 .... (9) ... (2) 1250 ... (10) (2)
55 .... 650±15 ... (2) 1900 ... ... (2)
56 550/650 .... 1600 2nd ... 1-1.5 .. (14)
(13) Ignition timing ±1°.
(14) See Engine Tune-Up Decal.
57 550/650 500/600 1600 2nd 1600 1-1.5 .. (14)
58 750 .... 1600 2nd .. 1-1.5 1-1.5 (14)
59 750 700 1600 2nd 1600 1-1.5 1-1.5 (14)
60 750 700 1600 2nd 1600 1-1.5 1-1.5 (14)
61 750 700 1600 2nd 1600 1-1.5 1-1.5 (14)
62 750 700 1600 2nd 1600 1-1.5 1-1.5 (14)
63 850/450 600/450 (16) (16) (16) .3 .3 (17)
(15) New Points.019" Used Points.016"
(16) Preset.
(17) See Engine Tune-Up Decal.
64 .... 650/550 ... Low 1000 ... .3 (17)
65 .... 650/550 ... Low 1000 ... .3 (17)
66 ... 650/550 .... Low 1000 ... .3 (17)
67 .... 650/550 .... Low 1000 ... .3 (17)
68 850/450 600/450 1800 (20) 1800 .2 .2 (19)
(18) .019" for new points and.016" for used points.
(19) See Engine compartment Tune-Up decal.
(20) Fast idle non-adjustable.
69 600/900 650 (20) (20) (20) .2 .2 (19)
70 .... 625 .... (20) (20) ... .2 (19)
71 600/1000 650 1500 High 1500 .2 .2 (19)
72 .... 625 .... High 1500 ... .2 (19)
73 .... 650 .... (20) (20) ... .2 (19)
74 .... 625 .... (20) (20) .... .2 (19)
75 600/1000 650 1500 High 1500 .2 .2 (19)
76 .... 625 .... High 1500 ... .2 (19)
77 .... 650 .... High 1500 ... .2 (19)
78 .... 625 .... High 1500 ... .2 (19)
79 600/1000 500/750 2000 High 2000 .2 .2 (19)
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