I don't think that would be too much of a problem with 12.5:1.
Look into the RHS Magnums or the EQ heads. RHS claims 262 CFM without any prep but that's advertising only. They're iron which may not suit your needs. Hughes or IMM will do those up for you for relatively little coin - they're 1.92 valves but cut for 2.02 and you're there. Sell some of your other stuff to recoup.
Look up LxGuy on here. He runs a 'junkyard' magnum combo in a '71 Dart street car that goes in the 11s.