It's been a while since I did that testing. We have to run a holley 4412 so the testing was done with a couple of different 2 to 4 bbl adapters and a couple different 4412's. If I recall correctly the power was similar with the 8022 making slightly more. But on my motor the ede. had better fuel distribution and ran smoother below peak HP. A friend of mine was running the 8022 and said his motor made a little more power with the 8022. He said he had no issues below peak hp. The manifold comparison might have different results with a 4 bbl.
