Just port the heads and pick the cam that will assist in hurdling the exhaust manifold choke.
Intake matching and opening up the flange/plenum.
After reading many replies...it feels like some people are confusing your 2 threads, like this for the engine contest one.
You can be very streetable with a .500's lift cam or right around. Closing can be earlier with a roller and not sacrifice valve lift or trade off for more duration.
But not absolutely necessary just easier.
When comparing to some builds I've done and seen, you'll have no problem building 360-370hp in those parameters.
