Titelist 910 D2 Surfit setting????

I recently purchased a titelst D2 910 driver, with a stiff R.I.P shaft 60grams, 10.5 deg loft. I do not know what setting is best for me. I am lossing the ball high to the right on almost every drive. I hit the ball ball around 310 the rare time when it goes straight  , but With this slice I am losing 30 yards of distance.  I am a right handed golfer. Also if I matters I have a very fast swing speed (126mph)

Please help me with what setting is best for my game 

Best thing to do would be to get on a launch monitor. But if the flight is too high and somewhat right then for a right handed I would try C2 or C3 and go from there

If you swinging at 126 with a fast tempo.  I would also suggest looking to get properly fit for a driver.  A D2 10.5 with a RIP 60 S will create a lot of spin!  And at that speed make you loose distance.