Should I keep these heads?

I'm building a 77 360 for my 66 Barracuda. Block .020 over, new cast crank, KB 107 pistons, 72 340 high-po exhaust manifolds, holly 750, (not sure of the cam) I guess the question is, are these heads worth rebuilding with 2.00 intake valves for this application, the exhaust ports of the heads are considerably smaller than th hi-po manifolds. Or am I waisting time-money-effort!!!!!!!!!!!!
Do I need something with a less cc chamber.
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