If you're nailed down to that cam, I think I'd drop down some on the static compression ratio. 8.31 DCR would seem to be a little dicey on pump gas in my opinion, but then, what do I know?

I would also think the Vortecs would be all the head you would need in a street motor with a short cam.

Build the motor with a tight squish, 0.035" to 0.040 to make it more octane tolerant. Juggle your deck height and gasket thickness to make it happen.

Drill the Vortecs for steam holes and use 400 head gaskets.