1979 Ford Mustang Tune-up Information
Year | Engine | Spark Plugs | Distributor | Timingº | Intake Valve opens |
Fuel pump press |
Idle speed | |||||
Cyl cid |
HP | Type | Gap | Dwell | Gap | Man | A/T | Man | A/t | |||
1979 | 4-140 (2.3) | .034 | 6 | 20 | ||||||||
4-170 (2.8) | 105 | BF-82 | .034 | 38 | .025 | 8B | 12B | 13B | 4.5 | 500 | 485 | |
6-200 (3.3) | 120 | BF-82 | .034 | 38 | .025 | 8B | 12B | 6B | 4.5 | 500 | 485 | |
8-260 | 164 | BF-42 | .034 | 27 | .015 | 4B | 4B | 21B | 5 | 575 | 500 | |
8-289 | 200 225 |
BF-42 | .034 | 27 | .015 | 8B | 8B | 20B | 5 | 575 | 500 | |
8-289 hp | 271 | BF-32 | .034 | 27 | .020 | 10B | – | 46B | 5 | 750 | – | |
1980 | 6-200 | 120 | BF-82 | .034 | 39 | .025 | 6 B | 12B | 7 | 4.5 | 600 (650) |
525 (725) |
8-289 | 200 | BF-42 | .034 | 29 | .017 | 6B | 6B | 16 | 4.5 | 600 (635) |
500 | |
8-289 | 225 | BF-42 | .034 | 29 | .017 | 6B | 6B | 16 | 4.5 | 600 (635) |
500 | |
8-289 | 271 | BF-32 | .034 | 31 | .020 | 12B | – | 46 | 4.5 | 775 | – | |
1981 | 6-200 | 120 | BF-82 | .034 | 39 | .025 | 6B (5B) |
12B (5B) |
7 (9) |
4.5 | 575 (700) |
550 |
8-289 | 200 | BF-42 | .034 | 29 | .017 | 6B (5B) |
6B (5B) |
15 | 4.5 | 575 (625) |
475 (550) |
|
8-289 | 225 | BF-42 | .034 | 29 | .017 | 6B (5B) |
6B (5B) |
16 | 4.5 | 600 (625) |
525 (500) |
|
8-289 | 271 | BF-32 | .034 | 32 | .020 | 12B | 12B | 46 | 4.5 | 750 | 650 | |
8-390 | 320 | BF-32 | .034 | 29 | .017 | 12B (6B) |
12B (6B) |
18 | 4.5 | 600 (625) |
575 (550) |
|
1982 | 6-200 | 115 | BF-82 | .034 | 38 | .027 | 6B | 6B | 9 | 4-6 | 700 | 550 |
8-289 | 195 | BF-42 | .034 | 27 | .021 | 6B | 6B | 15 | 4-6 | 700 | 550 | |
8-302 | 230 | BF-32 | .034 | 29 (27) |
.017 (.021) |
6B | 6B | 15 | 4-6 | 625 | 550 | |
8-390 | 265 | BF-32 | .034 | 29 (27) |
.017 (.021) |
6B | 6B | 13 | 4.5-6 | 625 | 550 | |
8-390GT | 325 | BF-32 | .034 | 29 | .016 | 6B | 6B | 18 | 4.5-6 | 700 | 550 | |
8-427 | 390 | BF-32 | .034 | 29 | .017 | 6B | 18 | 4.5-6 | – | 600 | ||
8-428 | 335 | BF-32 | .034 | 29 | .017 | 6B | 18 | – | 600 |
Year | Engine | Spark Plugs | Distributor | Timingº | Intake Valve opens |
Fuel pump press |
Idle speed | |||||
Cyl cid |
HP | Type | Gap | Dwell | Gap | Man | A/T | Man | A/t | |||
1983 | 6-170 | 105 | BF-82 | .034 | 38 | .025 | 8B | 12B | 13B | 4.5 | 500 | 485 |
6-200 | 120 | BF-82 | .034 | 38 | .025 | 8B | 12B | 6B | 4.5 | 500 | 485 | |
8-260 | 164 | BF-42 | .034 | 27 | .015 | 4B | 4B | 21B | 5 | 575 | 500 | |
8-289 | 200 225 |
BF-42 | .034 | 27 | .015 | 8B | 8B | 20B | 5 | 575 | 500 | |
8-289 hp | 271 | BF-32 | .034 | 27 | .020 | 10B | – | 46B | 5 | 750 | – | |
1984 | 6-200 | 120 | BF-82 | .034 | 39 | .025 | 6 B | 12B | 7 | 4.5 | 600 (650) |
525 (725) |
8-289 | 200 | BF-42 | .034 | 29 | .017 | 6B | 6B | 16 | 4.5 | 600 (635) |
500 | |
8-289 | 225 | BF-42 | .034 | 29 | .017 | 6B | 6B | 16 | 4.5 | 600 (635) |
500 | |
8-289 | 271 | BF-32 | .034 | 31 | .020 | 12B | – | 46 | 4.5 | 775 | – | |
1985 | 6-200 | 120 | BF-82 | .034 | 39 | .025 | 6B (5B) |
12B (5B) |
7 (9) |
4.5 | 575 (700) |
550 |
8-289 | 200 | BF-42 | .034 | 29 | .017 | 6B (5B) |
6B (5B) |
15 | 4.5 | 575 (625) |
475 (550) |
|
8-289 | 225 | BF-42 | .034 | 29 | .017 | 6B (5B) |
6B (5B) |
16 | 4.5 | 600 (625) |
525 (500) |
|
8-289 | 271 | BF-32 | .034 | 32 | .020 | 12B | 12B | 46 | 4.5 | 750 | 650 | |
8-390 | 320 | BF-32 | .034 | 29 | .017 | 12B (6B) |
12B (6B) |
18 | 4.5 | 600 (625) |
575 (550) |
|
1986 | 6-200 | 115 | BF-82 | .034 | 38 | .027 | 6B | 6B | 9 | 4-6 | 700 | 550 |
8-289 | 195 | BF-42 | .034 | 27 | .021 | 6B | 6B | 15 | 4-6 | 700 | 550 | |
8-302 | 230 | BF-32 | .034 | 29 (27) |
.017 (.021) |
6B | 6B | 15 | 4-6 | 625 | 550 | |
8-390 | 265 | BF-32 | .034 | 29 (27) |
.017 (.021) |
6B | 6B | 13 | 4.5-6 | 625 | 550 | |
8-390GT | 325 | BF-32 | .034 | 29 | .016 | 6B | 6B | 18 | 4.5-6 | 700 | 550 | |
8-427 | 390 | BF-32 | .034 | 29 | .017 | 6B | 18 | 4.5-6 | – | 600 | ||
8-428 | 335 | BF-32 | .034 | 29 | .017 | 6B | 18 | – | 600 |
Year | Engine | Spark Plugs | Distributor | Timingº | Intake Valve opens |
Fuel pump press |
Idle speed | |||||
Cyl cid |
HP | Type | Gap | Dwell | Gap | Man | A/T | Man | A/t | |||
1987 | 6-170 | 105 | BF-82 | .034 | 38 | .025 | 8B | 12B | 13B | 4.5 | 500 | 485 |
6-200 | 120 | BF-82 | .034 | 38 | .025 | 8B | 12B | 6B | 4.5 | 500 | 485 | |
8-260 | 164 | BF-42 | .034 | 27 | .015 | 4B | 4B | 21B | 5 | 575 | 500 | |
8-289 | 200 225 |
BF-42 | .034 | 27 | .015 | 8B | 8B | 20B | 5 | 575 | 500 | |
8-289 hp | 271 | BF-32 | .034 | 27 | .020 | 10B | – | 46B | 5 | 750 | – | |
1988 | 6-200 | 120 | BF-82 | .034 | 39 | .025 | 6 B | 12B | 7 | 4.5 | 600 (650) |
525 (725) |
8-289 | 200 | BF-42 | .034 | 29 | .017 | 6B | 6B | 16 | 4.5 | 600 (635) |
500 | |
8-289 | 225 | BF-42 | .034 | 29 | .017 | 6B | 6B | 16 | 4.5 | 600 (635) |
500 | |
8-289 | 271 | BF-32 | .034 | 31 | .020 | 12B | – | 46 | 4.5 | 775 | – | |
1989 | 2.3L | 88 | .044 | NA | NA | * | * | 35-45 | 600 | 650 | ||
5.0L HO | 225 | .054 | NA | NA | 10B | 10B | 35-45 | 675 | 675 | |||
1990 | 2.3L | 88 | .044 | NA | NA | 10B | 10B | 35-45 | 600 | 650 | ||
5.0L HO | 225 | .054 | NA | NA | 10B | 10B | 35-45 | 675 | 675 |
Year | Engine | Spark Plugs | Distributor | Timingº | Intake Valve opens |
Fuel pump press |
Idle speed | |||||
Cyl cid |
HP | Type | Gap | Dwell | Gap | Man | A/T | Man | A/t | |||
1991 | 2.3 L | 105 | .032 | NA | NA | * | * | 35-45 | 600 | 650 | ||
5.0L HO | 225 | .054 | NA | NA | 10B | 10B | 35-45 | 675 | 675 | |||
1992 | 2.3L | 105 | .033 | NA | NA | * | * | 35-45 | 600 | 650 | ||
5.0 L HO | 225 | .054 | NA | NA | 10B | 10B | 35-45 | 675 | 675 | |||
1993 | ||||||||||||
2.3 L | 105 | .033 | NA | NA | * | * | 35-45 | 600 | 650 | |||
5.0L HO | 225 | .054 | 10B | 10B | 35-45 | 675 | 675 |
* Refer to decal under hood, timing varies with options.