PontiacJim
Member
The vacuum advance is highly desirable on a street car as it can also provide a better idle, cools down the engine during deceleration or partial throttle, and it will also help in increasing gas mileage.
Race cars don't use vacuum advance because it has no use going down the track at wide open throttle.
Race cars don't use vacuum advance because it has no use going down the track at wide open throttle.