i'm going to assume it is the tr2 model which is not a very good psu. but so long as you are not overclocking on it, it should be enough to power a 970 and the 6300. it has the power connections and can provide over 400w of 12v power so it is powerful enough.
i would avoid overclocking with it as it is not a very reliable unit and may not last very long with high power draws over the long term.