Tune-Up Specifications
| ENGINE | IGNITION TIMING | DISTRIBUTOR | SPARK PLUGS | CARBURETOR | No. | |||
|---|---|---|---|---|---|---|---|---|
| Synchro. Trans. | Auto. Trans. | Cam Angle | Point Gap | Type | Gap | Make & Type | ||
| AMERICAN MOTORS | ||||||||
| 199" & 232" 6 Cyl. | TDC | 5° BTDC | 31-34° | .016" | CH. N14Y | .033-.037" | Car. RBS | 1 |
| 232" 6 Cyl. 2 Bbl. | TDC | TDC | 31-34° | .016" | CH. N14Y | .033-.037" | Car. WCD | 2 |
| 232" Rogue "Auto" | 5° BTDC | 31-34° | .016" | CH. N14Y | .033-.037" | Hol. 1931 | 3 | |
| 290" & 343" V8 2 Bbl. | TDC | TDC | 29-31° | .016" | CH. N12Y | .033-.037" | Ford 6200 | 4 |
| 290" & 343" V8 4 Bbl. | TDC | TDC | 29-31 ° | .016" | CH. N12Y | .033-.037" | Car. AFB | 5 |
| 390" V8 4 Bbl. | TDC | TDC | 29-31 ° | .016" | CH. N12Y | .033-.037" | Car. AFB | 6 |
| BUICK | ||||||||
| 250" 6 Cyl. | TDC | 4° BTDC | 30-34° | .019" | AC R46N | .035" | Roch. MV | 7 |
| 350" V8 2 Bbl. | TDC | TDC | 29-31° | .016" | AC R45TS | .030" | Roch. 2GV | 8 |
| 350" V8 4 Bbl. | TDC | TDC | 29-31 ° | .016" | AC R45TS | .030" | Roch. 4MV | 9 |
| 400" V8 | TDC | TDC | 29-31° | .016" | AC R44TS | .030" | Roch. 4MV | 10 |
| 430" V8 | - | TDC | 29-31 ° | .016" | AC R44TS | .030" | Roch. 4MV | 11 |
| CADILLAC | ||||||||
| 472" V8 | - | 5° BTDC | 28-32° | .016" | AC R44N | .035" | Roch. 4MV | 12 |
| CHEVROLET | ||||||||
| 153" 4 Cyl. | IDC | 4° BTDC | 31-34° | (2).019" | AC R46N | .035" | Roch. M | 13 |
| 230" 6 Cyl. | TDC | 4° BTDC | 31-34° | (2).019" | AC R46N | .035" | Roch. MV | 14 |
| 250" 6 Cyl. | TDC | 4° BTDC | 31-34° | (2).019" | AC R46N | .035" | Roch. MV | 15 |
| 302" V8 | 4° BTDC | - | 28-32° | (2).019" | AC R43 | .035" | Hol. 4150 | 16 |
| 307" V8 | 2° BTDC | 2° BTDC | 28-32° | (2).019" | AC R45 | .035" | Roch. 2GV | 17 |
| 327" V8, 21 0 & 235 HP | 2° ATDC | 2° BTDC | 28-32° | (2).019" | AC R45 | .035" | Roch. 2GV | 18 |
| 350" V8 255 HP | (4)TDC | 4° BTDC | 28-32° | (2).019" | AC R44 | .035" | Roch. 4MV | 19 |
| 350" V8 300 HP | (4)TDC | 4° BTDC | 28-32° | (2).019" | AC R44 | .035" | Roch. 4MV | 20 |
| 350" V8 350 HP | 4° BTDC | - | 28-32° | (2).019" | AC R44 | .035" | Roch. 4MV | 21 |
| 350" V8 370 HP | 4° BTDC | - | 28-32° | (2).019" | AC R43 | .035" | Hol. 4150 | 22 |
| 396" V8 265 HP | 4° BTDC | 49 BTDC | 28-32° | (2).019" | AC R44N | .035" | Roch. 2GV | 23 |
| 396" V8 325 HP | 4° BTDC | 4° BTDC | 28-32° | (2).019" | AC R44N | .035" | Roch. 4MV | 24 |
| 396" V8 350 HP | TDC | 4° BTDC | 28-32° | (2).019" | AC R43N | .035" | Roch. 4MV | 25 |
| 396" V8 375 HP | 4° BTDC | 4° BTDC | 28-32° | (2).019" | AC R43N | .035" | Hol. 4150 | 26 |
| 427" V8 335 HP | 4° BTDC | 4° BTDC | 28-32° | (2).019" | AC R43N | .035" | Roch. 4MV | 27 |
| 427" V8 390 HP | 4° BTDC | 4° BTDC | 28-32° | (2).019" | AC R43N | .035" | Roch. 4MV | 28 |
| 427" V8 400 HP | 4° BTDC | 4° BTDC | 28-32° | (2).019" | AC R43N | .035" | (3) Hol. 2300 | 29 |
| 427" V8 425 HP | 4° BTDC | 4° BTDC | 28-32° | (2).019" | AC R43N | .035" | Hol. 4150 | 30 |
| 427" V8 430 HP | 12° BTDC | - | 28-32° | (2).019" | AC R43XL | .035" | Hol. 4150 | 31 |
| 427" V8 435 HP | 4° BTDC | 4° BTDC | 28-32° | (2).019" | AC R43N | .035" | (3) Hol. 2300 | 32 |
| CHRYSLER CORP. | ||||||||
| 170" 6 Cyl. | 5° ATC | 2 1/2 VAT DC | 42-47° | .017-.023" | CH. N14Y | .035" | Car. BBS | 33 |
| 225" 6 Cyl. | TDC | TDC | 42-47° | .017-.023" | CH. N14Y | .035" | Hol. 1920 | 34 |
| 273" V8 | 2 1/2° ATC | 2 1/2° ATC | 30-35° | .014-.019" | CH. N14Y | .035" | Car. BBD | 35 |
| 318" V8 | TDC | TDC | 30-35° | .014-.019" | CH. N14Y | .035" | Car. BBD | 36 |
| 340" V8 | TDC | 5° BTDC | (1)30-35° | .014-.019" | CH. NY9 | .035" | Car. AVS | 37 |
| 383" V8 2 Bbl. | TDC | 5° BTDC | 30-35° | .014-.019" | CH. J14Y | .035" | Car. BBD | 38 |
| 383" V8 4 Bbl. | TDC | 5° BTDC | (2)30-35° | .014-.019" | CH. J11Y | .035" | Car. AVS | 39 |
| 426" V8 Hemi. | TDC | TDC | (2) | .014-.019" | CH. N10Y | .035" | Car. AFB (2) | 40 |
| 440" V8 | - | 7.5° BTDC | 30-35° | .014-.019" | CH. J13Y | .035" | Hol. 4160 | 41 |
| 440" V8 Hi-Perf. | TDC | 5° BTDC | (2)30-35° | .014-.019" | CH. J11J | .035" | Car. AVS | 42 |
| 440" V8 "6-Pack" | - | - | - | - | - | - | (3) Hol. 2300 | 43 |
| SPARK PLUGS: AL
-AUTOLITE, CH
.-CHAMPION CARBURETORS: Car .-CARTER, Hol .-HOLLEY, Roch .-ROCHESTER, Str .-STROMBERG |
||||||||
| No. | HOT IDLE | FAST IDLE | Initial Idle Mixture | Air Fuel Ratio | Remarks | ||||
|---|---|---|---|---|---|---|---|---|---|
| Synchro Trans. | Auto. Trans. | Synchro Trans. | Auto. Trans. | ||||||
| RPM | Cam Step | RPM | Cam Step | ||||||
| 1 | 600 | 525 | 2000 | Index | 2000 | Index | Rich Stop | 14:1 | (1) Eng. Mod
- Set at Rich stop. Air Guard - Set 2 turns out. (2) Eng. Mod 14.0:1 Air Guard 13.0:1 |
| 2 | 600 | 525 | 2000 | High | 2000 | Index | Rich Stop | 14:1 | |
| 3 | - | 525 | - | - | 1600 | 2nd | Rich Stop | 14:1 | |
| 4 | 650 | 550 | 1600 | Index | 2000 | Index | (1) | (2) | |
| 5 | 650 | 550 | 2000 | Index | 2000 | Index | (1) | (2) | |
| 6 | 650 | 550 | 2000 | Index | 2000 | Index | (1) | (2) | |
| 7 | (1)700/400 | (1)500/400 | 720 | Low | 620 | Low | 2 Turns | (2) | (1) Idle Stop Solenoid used: Higher RPM - Solenoid connected. Lower RPM - Solenoid disconnected. (2) See Chevrolet(5). |
| 8 | 700 | 600 | - | - | - | - | 2 Turns | (2) | |
| 9 | 700 | 600 | 720 | Low | 620 | Low | 2 Turns | (2) | |
| 10 | 700 | 600 | 720 | Law | 620 | Low | 2 Turns | (2) | |
| 11 | - | 550 | - | - | 620 | Low | 2 Turns | (2) | |
| 12 | - | 550 | - | - | 1900-1950 | High | 4 Turns | (2) | (2) See Chevrolet (5). |
| 13 | 750 | 600 | 2400 | High | 2400 | High | 3 Turns | (5) | (1) Correct when Hot Idle is set. (2).016" for used points. (3) Idle Stop Solenoid used: Higher RPM - Solenoid connected. Lower RPM - Solenoid disconnected. (4) Corvette models set at 4° BTDC. (5) A/F ratio not available, tune engine for smoothest idle with highest vacuum reading at leanest mixture setting. (6) Set idle with A/C on |
| 14 | 700 | (3550/400 | 2400 | High | 2400 | High | 3 Turns | (5) | |
| 15 | 700 | (1)550/400 | 1800-2400 | High | 1800-2400 | High | 3 Turns | (5) | |
| 16 | 900 | - | 1800-2400 | High | - | - | 3 Turns | (5) | |
| 17 | 700 | 600 | 1800-2400 | High | 1800-2400 | High | 3 Turns | (5) | |
| 18 | 700 | 600 | 1800-2400 | High | 1800-2400 | High | 3 Turns | (5) | |
| 19 | 700 | 600 | 2400 | High | 2400 | High | 3 Turns | (5) | |
| 20 | 700 | 600 | 2400 | High | 2400 | High | 3 Turns | (5) | |
| 21 | 750 | - | 2400 | High | - | - | 3 Turns | (5) | |
| 22 | 750 | - | 2200 | High | - | - | 3 Turns | (5) | |
| 23 | 700 | 600 | 1800-2400 | High | 1800-2400 | High | 3 Turns | (5) | |
| 24 | 800 | 600 | 2400 | High | 2400 | High | 3 Turns | (5) | |
| 25 | 800 | 600 | 2400 | High | 2200 | High | 3 Turns | (5) | |
| 26 | 750 | (3)750/400 | 2200 | High | 2200 | High | 3 Turns | (5) | |
| 27 | 800 | 600 | 2400 | High | 2200 | High | 3 Turns | (5) | |
| 28 | (1)800 | (1)750 | 2200 | High | 2200 | High | 3 Turns | (5) | |
| 29 | (1)800 | (1)600 | 2200 | High | 2200 | High | 3 Turns | (5) | |
| 30 | 750 | (1)750/400 | 2200 | High | 2200 | High | 3 Turns | (5) | |
| 31 | 1000 | - | 2200 | High | - | - | 3 Turns | (5) | |
| 32 | 750 | (1)750/400 | 2200 | High | 2200 | High | 3 Turns | (5) | |
| 33 | (1)700 | (1)650 | 1600 | 2nd | 1800 | 2nd | 2 Turns | 14.2 | (1) Set idle with A/C on, if equipped, and lights on (2) With dual points: one set - 27-32° both sets - 37-42° (3) Idle Stop Solenoid used: Higher RPM - Solenoid connected. Lower RPM - Solenoid disconnected. |
| 34 | (1)700 | (1)650 | 1600 | 2nd | 1800 | 2nd | 2 Turns | 14.2 | |
| 35 | 700 | 650 | 1500 | 2nd | 1600 | 2nd | 2 Turns | 14.2 | |
| 36 | 700 | 650 | 1300 | 2nd | 1700 | 2nd | 2 Turns | 14 1 | |
| 37 | 750 | 700 | 1700 | 2nd | 1700 | 2 | 2 Turns | 14.2 | |
| 38 | 700 | 600 | 1600 | 2nd | 1600 | 2 | 2 Turns | 14:2 | |
| 39 | 700 | 650 | 1700 | 2nd | 1700 | 2 | 2 Turns | 14.2 | |
| 40 | 750 | 750 | 2000 | 2nd | 2000 | 2 | 2 Turns | 14.2 | |
| 41 | - | 600 | - | - | 1400 | 2 | 2 Turns | 14.2 | |
| 42 | 700 | 650 | 1700 | 2nd | 1700 | 2nd | 2 Turns | 14.2 | |
| 43 | (3)1000/500 | (3)900/500 | 2200 | 2nd | 1800 | 2nd | 14.2 | ||
| ENGINE | IGNITION TIMING | DISTRIBUTOR | SPARK PLUGS | CARBURETOR Make & Type | No. | |||
|---|---|---|---|---|---|---|---|---|
| Synchro. Trans. | Auto. Trans. | Cam Angle | Point Gap | Type | Gap | |||
| CORVAIR | ||||||||
| 95 HP. | 5° BTDC | 14° BTDC | 31-34° | (2).019" | AC 46FF | .035" | Roch. H | 1 |
| 110 HP. | 4° BTDC | 12° BTDC | 31-34° | (2).019" | AC 44FF | .030" | Roch. H | 2 |
| 140 HP. | 4° BTDC | 4° BTDC | 31-34° | (2).019" | AC 44FF | .030" | Roch. H & HV | 3 |
| FORD MOTOR CO. | ||||||||
| 170" 6 Cyl. | 6° BTDC | 6° BTDC | 35-40° | .027" | AL BF82 | .032-.036" | Car. YF | 4 |
| 200" 6Cyl. | 6° BTDC | 6° BTDC | 35-40° | .027" | AL BF82 | .032-.036" | Ford MOO | 5 |
| 240" 6 Cyl. | 6° BTDC | 6° BTDC | 35-40° | .027" | AL BF42 | .032-.036" | Ford 1101 Car. YF | 6 |
| 250" 6 Cyl. | 6° BTDC | 6° BTDC | 37-42° | .025" | AL. BF82 | .032-.036" | Ford 1101 | 7 |
| 302" V8 | 6° BTDC | 6° BTDC | (3)26-31 ° | (3).017" | AL. BF42 | .032-.036" | Ford 2100 | 8 |
| 351" V8 2 Bbl. | 6° BTDC | 6° BTDC | 26-31° | .017" | AL. BF42 | .032-.036" | Ford 2100 | 9 |
| 351" V8 4 Bbl. | 6° BTDC | 6° BTDC | 26-31° | .017" | AL. BF32 | .032-.036" | Ford 4300 | 10 |
| 390" V8 2 Bbl. | 6° BTDC | 6° BTDC | @26-31 ° | @.017" | AL. BF42 | .032-.036" | Ford 2100 | 11 |
| 390" V8 4 Bbl. | 6° BTDC | 6° BTDC | 26-31° | .017" | AL. BF42 | .032-.036" | Ford 4300 | 12 |
| 428" V8 | 6° BTDC | 6° BTDC | (3)26-31 ° | (4).017" | AL. BF32 | .032-.036" | Hol. 4150C | 13 |
| 428" V8 Pol. | - | 6° BTDC | 26-31° | .017" | AL. BF32 | .032-.036" | Ford 4100 | 14 |
| 429 V8 2 Bbl. | - | 6° BTDC | 26-31° | .017" | AL. BF42 | .032-.036" | Ford 2100 | 15 |
| 429" V8 4 Bbl. | 6° BTDC | 6° BTDC | (3)26-31 ° | (4).017" | AL. BF42 | .032-.036" | Ford 4300 | 16 |
| 460" V8 | - | 10° BTDC | 26-31° | .017" | AL. BF42 | .032-.036" | Ford 4300 | 17 |
| OLDSMOBILE | ||||||||
| 250" 6 Cyl. | 0° TDC 700 RPM | 4° BTDC 500 RPM | 31-34° | .019" | AC R46N | .035" | Roch. MV | 18 |
| 350" V8 2 Bbl. | 6° BTDC 850 RPM | 6° BTDC 850 RPM | 30° | .016" | AC R46S | .030" | Roch. 2GC | 19 |
| 350" V8 4 Bbl. | 8° BTDC 850 RPM | 8° BTDC 850 RPM | 30° | .016" | AC R45S | .030" | Roch. 4MV | 20 |
| 350" V8 4 Bbl. "W31" | 10° BTDC 850 RPM | 10° BTDC 850 RPM | 30° | .016" | AC R44S | .030" | Roch. 4MV | 21 |
| 400" V8 10.25:1 | 12° BTDC 1000 RPM | 12° BTDC 1000 RPM | 30° | .016" | AC R43S | .030" | Roch. 4MV | 22 |
| 400" V8 10.50:1 | 2° BTDC 850 RPM | 8° BTDC 850 RPM | 30° | .016" | AC R44S | .030" | Roch. 4MV | 23 |
| 400" V8 "W30" | 14° BTDC 1250 RPM | 14° BTDC 1250 RPM | 30° | .016" | AC R43S | .030" | Roch. 4MV | 24 |
| 455" V8 2 Bbl. | 6° BTDC 850 RPM | 6° BTDC 850 RPM | 30° | .016" | AC R45S | .030" | Roch. 2GC | 25 |
| 455" V8 4 Bbl. | - | 8° BTDC 850 RPM | 30° | .016" | AC R44S | .030" | Roch. 4MV | 26 |
| 455" V8 Police or "W34" | - | 10° BTDC 850 RPM | 30° | .016" | AC R44S | .030" | Roch. 4MV | 27 |
| PONTIAC | ||||||||
| 250" 6 Cyl. | 0° TDC | 0° TDC | 33° | (3) | AC R44NS | .035" | Roch. MV | 28 |
| 250" 6 Cyl. 4 Bbl. | 5° BTDC | 5° BTDC | 33° | (3) | AC R44NS | .035" | Roch. 4MV | 29 |
| 350" V8 2 Bbl. | 9° BTDC | 9° BTDC | 30° | (3) | AC R45S | .035" | Roch. 2GV | 30 |
| 350" V8 4 Bbl. | 9° BTDC | 9° BTDC | 30° | (3) | AC R45S | .035" | Roch. 4MV | 31 |
| 400" V8 2 Bbl. | 9° BTDC | 9° BTDC | 30° | (3) | AC R45S | .035" | Roch. 2GV | 32 |
| 400" V8 4 Bbl. | 9° BTDC | 9° BTDC | 30° | (3) | AC R45S | .035" | Roch. 4MV | 33 |
| 400" V8 Ram Air | 15° BTDC | 15° BTDC | 30° | (3) | AC R44S | .035" | Roch. 4MV | 34 |
| 428" V8 | 9° BTDC | 9° BTDC | 30° | (3) | AC R44S | .035" | Roch. 4MV | 35 |
| SPARK PLUGS: AL
- AUTOLITE, CH
. - CHAMPION CARBURETORS: Car .-CARTER, Hol .-HOLLEY, Roch .-ROCHESTER, Str .-STROMBERG |
||||||||
| No. | HOT IDLE | FAST IDLE | Initial Idle Mixture | Air Fuel Ratio | Remarks | ||||
|---|---|---|---|---|---|---|---|---|---|
| Synchro Trans. | Auto. Trans. | Synchro Trans. | Auto. Trans. | ||||||
| RPM | Cam Step | RPM | Cam Step | ||||||
| 1 | 700 | 600 | (1) | - | (1) | - | 3 Turns | (2) | (1).075" between idle stopscrew and throttle lever. (2) See Chevrolet(5). |
| 2 | 700 | 600 | (1) | - | (1) | - | 3 Turns | (2) | |
| 3 | 650 | 550 | (1) | - | (1) | - | 3 Turns | (2) | |
| 4 | 750 | 550 | (1) | (1) | (1) | (1) | 1 1/2 Turns | (5) | (1) Bench adjustment (2) Idle Stop Solenoid used: Higher RPM - Solenoid connected. Lower RPM - Solenoid disconnected. (2) Man. Trans.: Dist. gap -.021" Cam angle - 24-29° (4) 390" 2 Bbl., premium fuel Dist. gap-.021 Cam angle - 24-29° (5) See Notes at end of this Section. |
| 5 | 750 | 550 | 1400 | Center | 1500 | Center | 1 1/2 Turns | (5) | |
| 6 | (2)775/500 | 500 | 1400 | Center | 1600 | Center | 1 1/2 Turns | (5) | |
| 7 | (2)700/500 | (2)550/450 | 1400 | Center | 1600 | Center | 1 1/2 Turns | (5) | |
| 8 | 650 | 550 | 1400 | Center | 1600 | Center | 1 1/2 Turns | (5) | |
| 9 | 650 | 550 | 1300 | Center | 1600 | Center | 1 1/2 Turns | (5) | |
| 10 | 675 | 575 | 1250 | Center | 1400 | Center | 1 1/2 Turns | (5) | |
| 11 | 650 | 550 | 1300 | Center | 1500 | Center | 1 1/2 Turns | (5) | |
| 12 | 700 | 550 | 1400 | Center | 1500 | Center | 1 1/2 Turns | (5) | |
| 13 | 700 | 650 | 1350 | High | 1350 | High | 1 1/2 Turns | (5) | |
| 14 | - | 600 | - | - | 1550 | 2nd | 1 1/2 Turns | (5) | |
| 15 | - | 550 | - | - | 1500 | Center | 1 1/2 Turns | (5) | |
| 16 | 650 | 550 | 1200 | 2nd | 1300 | Center | 1 1/2 Turns | (5) | |
| 17 | - | 550 | - | - | 1300 | Center | 1 1/2 Turns | (5) | |
| 18 | (1)775/400 | (1)625/400 | 750 | Low | 750 | Low | 2 Turns | (2) | "W30", "W31", "W34" Outside Air Option used with Thermostatic Air Cleaner. (1) Idle stop solenoid used: Higher RPM - solenoid connected Lower RPM - solenoid disconnected (2) Air/fuel ratio not available. Tune engine for smoothest idle with highest vacuum at leanest mixture setting. |
| 19 | (1)675/400. | (1)600/400 | 800 | Low | 900 | Low | 2 Turns | (2) | |
| 20 | 675 | 575 | 700 | Low | 700 | Low | 2 Turns | (2) | |
| 21 | 800-850 | 575 | 900 | Low | 900 | Low | 2 Turns | (2) | |
| 22 | 750 | 575 | 750 | Low | 900 | Low | 2 Turns | (2) | |
| 23 | 750 | 575 | 750 | Low | 900 | Low | 2 Turns | (2) | |
| 24 | 800-850 | 600-650 | 1000 | Low | 1400 | Low | 2 Turns | (2) | |
| 25 | 675 | 575 | 900 | Low | 900 | Low | 2 Turns | (2) | |
| 26 | - | 575 | - | - | 700 | Low | 2 Turns | (2) | |
| 27 | - | 575 | - | - | 700 | Low | 2 Turns | (2) | |
| 28 | (1)730/500 | (1)610/500 | 2400 | High | 2800 | High | 5 Turns | (4) | (1) Idle Stop Solenoid used: Higher RPM - Solenoid connected Lower RPM - Solenoid disconnected. (2) No adjustment. (3).019" - New .016" - Used (4) See Oldsmobile(2) (above). |
| 29 | (1)880/600 | (1)610/500 | 2600 | High | 2800 | High | 5 Turns | (4) | |
| 30 | 850 | 650 | (2) | (2) | (2) | (2) | 4 Turns | (4) | |
| 31 | 1000 | 650 | 2300 | High | 2300 | High | 5 Turns | (4) | |
| 32 | 850 | 650 | (2) | (2) | (2) | (2) | 4 Turns | (4) | |
| 33 | 1000 | 650 | 2300 | High | 2300 | High | 5 Turns | (4) | |
| 34 | (1) 1100/650 | (1) 650/500 | 2800 | High | 2800 | High | 5 Turns | (4) | |
| 35 | 1000 | 650 | 2300 | High | 2300 | High | 5 Turns | (4) | |