| Part | Part Number |
| 95 GM Optispark | 1104032 |
| 95 Opti elec harness | 12130319 |
| Opti vacuum harness | 12555323 |
| Opti vacuum fitting | 14082470 |
| 95 Timing cover (incl all 3 seals) | 12552426 |
| GM timing cover gasket | 10128293 |
| 95 Cam Timing Gear | 10206039 |
| Water Pump Gaskets (2) | 10128343 |
The above parts are what you need to convert to a 95 style opti from a 94 style. You must do this to run any kind of heavy duty timing chain.