I will assume the bow fits you as far as draw length and you can draw it at the 70+/- lbs it is set at. If that's the case I would say you can't go wrong with Gold Tip 7595 arrows. There are more costly ones out there and maybe a little better ones but the Gold Tips have served me well for years.
As for broadheads, with that set up, just about any good flying fixed blade or mechanical will work for you. I'd go with a 125 gr head in Rage Hypodermic for a mechanical or one of the Slick Trick heads in a fixed broadhead.
But as far as the bow goes, I strongly suggest you go to a pro shop and have it set up for you properly. And go to the technical threads on this forum and read up on tuning your bow properly. Good luck