Extend the life of your Corvette with the C3 Corvette 1975-1982 Vacuum Advance.
The Corvette Vacuum Advance works to improve the timing and sparks on your Corvette. Without a working vacuum advance, your Corvette's spark timing can make your Corvette less fuel efficient and throw off your throttle response.
Adjust your lag time and increase your RPM by replacing your old vacuum advance with the new Corvette Vacuum Advance from Corvette Mods.
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