i've built a few 400hp 318's and they all had more cam than that. also they were just at 400 and straight up done at 6000ish
the graph shows most all of the power at 4K and more, with that big goofy torque dip and flat right in the meat of where you'd be cruising.
you could make the same torque with a smaller cam all day and be right in the wheelhouse of where the general operation for this type of vehicle would be.
also, i wouldn't buy a cam from those jokers based on the experiences of others.