Depends on the carb/intake/exhaust package. Turning a few hundred more RPM may not be producing any more horsepower but if it allows you to run a 5% shorter gears and not give up any top speed that would obviously be a big advantage. Especially if you are mistake prone or mommentum challenged (car will recover speed quicker). Even if you geared the same you'd have a 3-4 mph top speed advantage (7000 rpms vs. 6750 at 130mph) and essentially walk away from others.