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What are the B1BS's peers? Would it be the Edelbrock Victor and Indy 440-1?

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I had Jeff at Modern cylinder heads CNC port a set of stock B1-BS to M.W. size, they flowed(intakes) 350 CFM at .600 on a Super Flow 600 bench at 28 inches of water, I have a set of Indy SR that where M.W. port size when I bought them used, they flowed 340 CFM on the same bench by the same tech. on a different day Both the SR and the B1-BS have the standard rocker arms, pushrod pinch and intake valve spacing like the stock 361/440 have so that is probally the limiting factor on how good you can get them to flow My CNC ported 440-1 flowed 370 CFM on the same bench at the same specs I swapped the SR to the 440-1 on two different motors that I ended up dyno testing both motors on a back to back tests and both motors changed 50 HP