I believe Engine Masters did this test, IIRC Snioer doesn't like dual planes, at least not on a dyno. Some claim it was the wrong kind of intake, without specifying what the right kind of intake it should be. Holley says it works fine. Others say if you remove the center divider it works on a dual plane.
Having dealt with their Projection garbage in the 90's I ain't gambling more money on Holley having their stuff in one sock and remembering to bring the sock too.
