Maximizing flow limited combos?

I would use a sol roller cam. After selecting the LSA & duration for your desired power range, I would then select lobes with as much lift as your valve train will operate with. Once lobe lift is known, pick a lobe series that has as much area under the curve to maximise the 'valve open' time of your heads.
Example from Comp lobes. Duration at 050/200/lobe lift.
TC series 252/172/436
TK series 253/179/430.

For a 252 @ 050 cam, the TK has more area under the curve.