RHS flow #'s

How would an un-ported pair of these heads work on a stock-stroke 318 with maybe 10:1 comp. and a Voodoo 60401 cam? I was thinking of 1.6 rockers on the intakes but leaving the exhausts at 1.5 because the cam is already dual-pattern and the exhaust ports flow so well. Here are the cam specs:

# Advertised Duration (Int/Exh): 256/262
# Duration @ .050 (Int/Exh): 213/220
# Gross Valve Lift (Int/Exh): .454/.475
# LSA/ICL: 112/108
# Valve Lash (Int/Exh): Hyd/Hyd
# RPM Range: 1000-5500

Also what intake would work best for this combo? I'll probably be running 2.94 or 3.23 gears and gas mileage is a concern, would a Performer-level intake work towards that or would it be too restrictive for these heads in the upper RPM ranges?