Ignition Timing
| Spark Control Computer | Basic Timing |
| 4289024 | 12 Degrees (deg) |
| 4289067 | 12 Degrees (deg) |
| 4289069 | 16 Degrees (deg) |
| 4289075 | 16 Degrees (deg) |
| 4289077 | 16 Degrees (deg) |
| 4289081 | 12 Degrees (deg) |
| 4289083 | 16 Degrees (deg) |
| 4289086 | 16 Degrees (deg) |
| 4289089 | 12 Degrees (deg) |
| 4289091 | 12 Degrees (deg) |
| 4289094 | 16 Degrees (deg) |
| 4289097 | 12 Degrees (deg) |
| 4289099 | 12 Degrees (deg) |
| 4289103 | 12 Degrees (deg) |
| 4289145 | 16 Degrees (deg) |