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Tune-up Chart

Year

Engine

 HP Spark Plug Distributor Ignition Timing(deg) ▲ Valves
Intake
Opens
■ (deg)		 Fuel
Pump
Pressure
(psi)		 Idle Speed
(rpm) ▲
●

Type

Gap

Point
Dwell
* (deg)

Point
Gap
(in.)

Man
Trans

Auto
Trans

 Man. Trans Auto Trans

'70

6-170

 105 BF-82 .034 37 /39 .027 / .025 6 B 6 B 9 4 1/2 750 550

 

6-200

 120 BF-82 .034 37 /39 .027 / .025 6 B 6 B 9 4 1/2 800 / 500 600 / 500

 

6-250

 155 BF-82 .034 37 /39 .027 / .025 - 6 B 10 4-6 - 550

'71

6-170

 100 BRF-82 .034 35 / 36 .027 / .025 6 B - 9 4-6 750 -

 

6-200

 115 BRF-82 .034 35 / 36 .027 / .025 6 B 6 B 9 4-6 800 / 500 600 / 500

 

6-250

 145 BRF-82 .034 35 / 36 .027 / .025 6 B 6 B 10 4-6 750 / 500 600 / 500

 

8-302

 210 BRF-42 .034 26 / 28 .021 / .017 6 B 6 B 16 4-6 800 / 800 600 / 500

'72

6-170

 82 BRF-82 .034 37 .027 6 B - 9 4-6 750 -

 

6-200

 91 BRF-82 .034 37 .027 6 B 6 B 9 4-6 800 /500 600 / 500

 

6-250

 98 BRF-82 .034 37 .027 6 B 6 B 10 4-6 750 / 500 600 / 500

 

8-302

 143 BFR-42 .034 28 .017 6 B 6 B 16 4-6 800 / 500 600 / 500

'73

6-200

 91 BRF-82 .034 37 .027 / .025 6 B 6 B 9 4-6 800 /500 600 / 500
 

6-250

 98 BRF-82 .034 37 .027 / .025 - 6 B 10 4-6 750 / 500 600 / 500
 

8-302

 143 BFR-42 .034 28 .017 6 B 6 B 16 4-6 800 / 500 600 / 500
'74

6-200

 84 BRF-82 .034⑥ 37⑤ .024 / .030 6 B 6 B 28 4-6 800 /500 600 / 500
 

6-250

 91 BRF-82 .044 37 .024 / .030 6 B 6 B 26 4-6 750 / 500 600 / 500
 

8-302

 140 BFR-42 .044 27 .014 / .020 6 B 6 B ② 4-6 800 / 500 600 / 500
'75

6-200

 74, 75 BRF-82 .044 Electronic   6 B 6 B 20 4 1/2 - 5 1/2 750 / 500 600 / 500
 

6-250

 70, 72, 79, 85 BRF-82 .044 Electronic   6 B 6 B 26 4 1/2 - 5 1/2 850 / 500 600 / 500
 

8-302

 122, 129 BFR-42 .044 Electronic   6 B 6 B 20 5 1/2 - 6 1/2 900 / 500 650 / 500
 

8-302

 115 BFR-42 .044 Electronic   6 B 8 B 20 5 1/2- 6 1/2 900 / 500 650 / 500
'76

6-200

 All BRF-82 .044 Electronic   ③ ③ 20 4 1/2 - 5 1/2 800 650
 

6-250

 All BRF-82 .044 Electronic   ③ ③ 26 4 1/2 - 5 1/2 850 600
 

8-302

 All AFR-42 /52③ .044 Electronic   ③ ③ 20 5 1/2 - 6 1/2 750 650 (700)
'77

6-200

 All BRF-82 .050 Electronic   ③ ③ 20 5 1/2 - 6 1/2 800 650
 

6-250

 All BRF-82➆ .050⑧ Electronic   ③ ③ 18 5 1/2 - 6 1/2 850 600
 

8-302

 All AFR- 52➆ .050⑧ Electronic   ③ ③ 16 5 1/2 - 6 1/2 750 650 (700)

* Where two dwell or point gap figures are separated by a slash, the first figure is for engine equipped with dual diaphragm distributors and the second figure is for engines equipped with single diaphragm distributors.

▲ Idle speeds are adjusted with the headlights on, automatic transmission in Drive or manual transmission in Neutral, and the air condition controls (if so equipped) in the Off position. On models equipped with throttle solenoids, the high speed figure is adjusted with the solenoid activated, using the solenoid screw adjustment. The lower idle speed figure on solenoids-equipped cars are adjusted (with the solenoid wire disconnected at the inline connector) with the carburetor idle screws. On models not equipped with throttle solenoids (1970-72 models only), the idle speed is adjusted with the curb idle adjusting screw on the carburetor.

All figures Before Top Dead Center

● Where two idle speed figures are separated by a slash, the first figure is for idle speed with solenoid energized and automatic transmission in Drive, while the second is for idle speed with solenoid disconnected and auto transmission in Neutral. Figures in parentheses are for California.
B Before Top Dead Center
- Not applicable

16°B- manual transmission - 20°B- automatic transmission
③ Depends on emission equipment: check underhood specifications.
⑤ Electronic ignition used on all engines assembled after May, 1974
⑥ .044 in. with electronic ignition.
➆  AFR-52_6 for Calif. engines.
NOTE:  The underhood specifications sticker often reflects tuneup specification changes made in production. Sticker figures must be used if they disagree with those in this chart.

* Where two dwell or point gap figures are separated by a slash, the first figure is for engine equipped with dual diaphragm distributors and the second figure is for engines equipped with single diaphragm distributors.
▲  Idle speeds are adjusted with the headlights on, automatic transmission in Drive or manual transmission in Neutral, and the air condition controls (if so equipped) in the Off position. On models equipped with throttle solenoids, the high speed figure is adjusted with the solenoid activated, using the solenoid screw adjustment. The lower idle speed figure on solenoids-equipped cars are adjusted (with the solenoid wire disconnected at the inline connector) with the carburetor idle screws. On models not equipped with throttle solenoids (1970-72 models only), the idle speed is adjusted with the curb idle adjusting screw on the carburetor
■  All figures Before Top Dead Center
●  Where two idle speed figures are separated by a slash, the first figure is for idle speed with solenoid energized and automatic transmission in Drive, while the second is for idle speed with solenoid disconnected and auto transmission in Neutral. Figures in parentheses are for California.
B Before Top Dead Center
- Not applicable
②  16°  B- manual transmission - 20°  B- automatic transmission
③ Depends on emission equipment: check underhood specifications.
⑤ Electronic ignition used on all engines assembled after May, 1974
⑥  .044 in. with electronic ignition.
➆  AFR-52_6 for Calif. engines.
NOTE:  The underhood specifications sticker often reflects tuneup specification changes made in production. Sticker figures must be used if they disagree with those in this chart.