A ported RPM will hold it's own with a good blended Victor to 6,000 rpm. We've tested that on a 496 stroker.
RPM...........Victor intake TQ/HP...........RPM intake TQ/HP
3000.......................472/269...................495/283.......+21 TQ
3200.......................483/294...................515/314.......+32
3400.......................513/332...................546/354.......+33
3600.......................516/354...................550/377.......+34
3800.......................516/373...................555/401.......+39
4000.......................528/402...................558/425.......+30
4200.......................532/425...................553/442.......+21
4400.......................545/456...................552/462.......+7
4600.......................554/485...................553/484.......-1
4800.......................562/513...................558/510.......-4
5000.......................562/535...................552/526.......-10
5200.......................551/546...................556/550.......+5
5400.......................546/561...................546/561........0
5600.......................541/576...................532/568.......-9
5700.......................539/585...................530/575.......-9
5800.......................534/590...................517/571.......-17
5900.......................525/591...................508/570.......-17
6000.......................512/584...................497/568.......-15
6100.......................503/585...................480/558.......-23
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