No, in reality you should turn the turbo features off if you configure a manual overclock as it will not allow you to correctly configure your chips stability. Voltage and multiplier settings will be adversely affected by allowing turbo features to remain enabled alongside a manual overclock. You'll never be able to correctly "tune" your overclock settings and determining stability will be nearly impossible.
We generally recommend either leaving the default turbo settings alone or configuring the overclock manually, not both. Even so, if you did overclock and leave turbo features enabled, they would still stay the same as they are so it's kind of pointless. Turbo settings can be tweaked as well, but it's a poor way to gain performance as your voltage and multiplier will be all over the place.