for your engine you don't need hi flow or volume. stick stock. I also suggest the melling pumps, available at autozone cheaply. I do "believe" they make the stockers. Thousands swear by them, and that's what I run. It was a lot cheaper than the ford oem one, though you can't go wrong with either.
do take the time to upgrade to ford racing oil pump driveshaft. It's only $20 and it'll insure against twisting of the oem one which is common. Stay away from non frpp shafts, as they need to be "sized" vs the frpp, plug and play.