If it was me, I think I'd set it up with a small base to begin with and see how it does. I's start with a large base power valve and about 48 jets.

There are 2 basic types of progressive linkage I use. The first one uses a seperate piece of linkage from the center carb to each outboard unit (a lot like the early Ford FE tri-power linkage)..

This particular unit is on a HEMI thats going into a 57 Plymouth. On that car the linkage from the peddle pushes instead of pulls, which is why there no provisions at the top of the linkage for a peddle hookup.