Ignition Timing
NOTE:
Some engines may include a magnetic timing probe hole. This is for use with special electronic timing equipment. Refer to equipment manufacturer's instructions for correct procedures.
Check or adjust ignition timing with engine at normal operating temperature, distributor vacuum advance hose disconnected and plugged and engine at correct RPM. See IGNITION TIMING SPECIFICATIONS (DEGREES BTDC@RPM) table . On 1975 models with automatic transmission, transmission must be in Drive and idle solenoid energized.
| Application |
Man. Trans. |
Auto. Trans. |
| 1975-76 |
| |
95" |
10@800 |
10@800 |
| |
98" |
8@800 |
10@800 |
| |
122" EFI |
12@800 |
..... |
| |
140" |
| |
|
1-Bbl. |
8@750 |
10@750 |
| |
|
2-Bbl. |
10@750 |
12@750 |
| |
140" |
| |
1977 |
| |
|
95" |
12@800 |
12@800 |
| |
|
98" |
8@800 |
8@800 |
| |
140 |
| |
|
Federal |
2@650 |
0@700 |
| |
|
High Alt |
2@700 |
0@700 |
| |
|
Calif. |
0@650 |
2@700 |
| 1978 |
| |
98" |
8@800 |
8@800 |
| |
151" |
| |
|
Federal |
12@650 |
..... |
| |
|
Calif. |
14@1000 |
14@1000 |
| 1979 |
| |
98" |
| |
|
Federal |
12@800 |
18@750 |
| |
|
Calif. |
12@800 |
M6@750 |
| |
151" |
| |
|
Federal |
12@900 |
12@650 |
| |
|
Calif. |
14@1000 |
14@1000 |