RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)
I have a 70" Revolver with the DLE20, about 10 lbs - very similar to your P47 - and use an APC 16x8 - excellent performance. But if you're going for speed it seems a 15x10 or 15x12 works better than a 16x8. And there's a good video on Youtube from a guy "knockoffs" with the same setup, but using a Xoar 15x8 - very nice performance. It's called "DLE20cc and Revolver 70".