Correct my future setup.

As has been stated before, it's all about power for the money. You put the rockers on, you might feel a tad more power but it stops at the exact point it did stock. A cam, you'll hear a difference (more or less depending on cam selection) and feel a difference. You also gain around twice the power of rockers for less than twice the price.

well stock power levels off after 5200.

with rockers it'll pull to 5700.

But a cam will let you drop pulley(unlike rockers), and add power all over the map.