ORIGINAL: TFOX
Well,at 29" draw length and shooting a .400 spine arrow at 70#'s,I am going to say the broadhead hitting right is due to the arrow spine being too weak.As far as too high,I would say the rest needs to be moved down slightly as well.
I would try to tune by moving the rest towards your field points but I doubt you will have much succes with that arrow spine.
TFOX is right. Try to lower your poundage down to 60 and see how it flies before you attempt adjust anything, youneed 340's imo