1955 - 1957 Corvette: Service News: Setting V-8 Timing at 1,000 Engine RPM Discontinued
Below are revised tune-up procedures for the 1955 - 1957 Corvette equipped with eight cylinder engines. Although the information in this article is incorrect, we will leave it available for historical purposes.
NOTE: The following response is from Corvette Action Center Member JohnZ:
This article is WRONG, and contains instructions to set timing with the vacuum advance CONNECTED. A later supplement corrects the error and makes it clear that ‘55-‘57 V-8 timing is to be set with the vacuum advance DISCONNECTED.