This unit permits a seamless wide range of adjustment to both amount and rate of ignition advance. This unit helps increase horsepower and throttle response. It provides maximum spark advance while preventing detonation or "pinging". This kit includes an allen wrench for easy adjustment along with instructions.
Features:
- Adjustable Vacuum Advance
- Increases Horsepower And Throttle Response
- Includes Allen Wrench For Adjustments
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
| Make |
Model |
Years |
Engine |
Fitment Notes |
| Chevrolet |
Corvette |
1975 |
5.7L / 350 / V8 |
ADJUSTABLE VACUUM ADVANCE; GM/HEI DISTRIBUTOR W/VACUUM ADVANCE; |
| Chevrolet |
Corvette |
1976 |
5.7L / 350 / V8 |
ADJUSTABLE VACUUM ADVANCE; GM/HEI DISTRIBUTOR W/VACUUM ADVANCE; |
| Chevrolet |
Corvette |
1977 |
5.7L / 350 / V8 |
ADJUSTABLE VACUUM ADVANCE; GM/HEI DISTRIBUTOR W/VACUUM ADVANCE; |
| Chevrolet |
Corvette |
1978 |
5.7L / 350 / V8 |
ADJUSTABLE VACUUM ADVANCE; GM/HEI DISTRIBUTOR W/VACUUM ADVANCE; |
| Chevrolet |
Corvette |
1979 |
5.7L / 350 / V8 |
ADJUSTABLE VACUUM ADVANCE; GM/HEI DISTRIBUTOR W/VACUUM ADVANCE; |
| Chevrolet |
Corvette |
1980 |
5.7L / 350 / V8
5.0L / 305 / V8 |
ADJUSTABLE VACUUM ADVANCE; GM/HEI DISTRIBUTOR W/VACUUM ADVANCE; |
| Chevrolet |
Corvette |
1981 |
5.7L / 350 / V8 |
ADJUSTABLE VACUUM ADVANCE; GM/HEI DISTRIBUTOR W/VACUUM ADVANCE; |
| Chevrolet |
Corvette |
1982 |
5.7L / 350 / V8 |
ADJUSTABLE VACUUM ADVANCE; GM/HEI DISTRIBUTOR W/VACUUM ADVANCE; |
| Chevrolet |
Corvette |
1984 |
5.7L / 350 / V8 |
ADJUSTABLE VACUUM ADVANCE; GM/HEI DISTRIBUTOR W/VACUUM ADVANCE; |
| Chevrolet |
Corvette |
1985 |
5.7L / 350 / V8 |
ADJUSTABLE VACUUM ADVANCE; GM/HEI DISTRIBUTOR W/VACUUM ADVANCE; |
| Chevrolet |
Corvette |
1986 |
5.7L / 350 / V8 |
ADJUSTABLE VACUUM ADVANCE; GM/HEI DISTRIBUTOR W/VACUUM ADVANCE; |
