It can be used for that. But on FI systems you can rev-limit based on engine RPM too, so it could have been one or the other. Not sure what GM's approach was to that.
TBI trucks have no speed limitation that I know of, and the CC cars didn't either, even though it would have been possible.
TBI trucks have no speed limitation that I know of, and the CC cars didn't either, even though it would have been possible.