Same that has been reported to me by everyone that I know who has made the swap.

The Edelbrock Super Victor 2 is hard to beat. The M&M could be better but only if you turn a lot of rpm.

All I can add on the manifold is I did a set of 20's for Div 5 SG racer Dennis Hay. He just ran 176 mph at Topeka. I did nothing to the Edelbrock manifold except made sure it matched.

I did have a guy find some power in a Dart ported tunnel ram, vs single, but that is to be expected.

The Eddy SV632 is hard to beat. The current Brodix needs a good deal more to match it AFRs also needs more work The fact that the M&M has not shown an increase tells me that something is holding it back because it lost nothing also! That intake has much shorter runners and a bigger plenum so it should be better up top! Carb size is one possible choke but based on the 2.4 intake valve I feel this is the basic choke in your typical build. To make this intake work you likely need more rpm and a cam that provides over 1 inch of lift IMO after seeing a few good 632 combos try it.