Tony, along with that information, what is your speed? The arrow although on the light side, I wouldn't consider it too light unless your speed is way down as well. It's always better to have the heaviest arrow your bow can handle via spine however it would come at the cost of speed. There is always a happy medium.

For example, my hunting arrow (381 grains (only 50 gr heavier)) travels 305 fps, just shy of 80 fts of KE. More than adequate.