Cross ram intakes on a small block

My kickdown was a standard linkage affair to the front 390 carb and then I ran a bike brake cable off the front of that carb linkage around the front to other Holley 390 I had installed backwards. One pulled the other open 1:1. It made sense when I did it with what I had, but 2 holleys facing forward with a hard linkage between them looks allot less ghetto. I still think it was under carbed: 2 600's or 625's