318 heads

Rv Camshaft 800-5000 operating range advanced 4 degrees 302 heads and four barrel 500cfm with sp2p intake 3.23 gears and hot igntion msd box. Should have alot of torque and great mileage.
What spec cam do you recommend? Is the 500 cfm carburetor enough? I haven't seen a sp2p intake manifold in years.