360 11.5:1 pistons

I have a couple sets of J’s and a set of 308’s. My CNC 190 junkmasters are not going to work with the closed chambered. I have a 91’ roller and a 71’ that are in need of building but I also have a set of speed pro hcp116 so I got to map out a couple builds.
Those HCP116 are good pistons. I have them in the wife’s 360 now.
The MP units are good with W2’s. The older W2’s were open chambered.