So last week I went to my local machine shop and was discussing some machine work needed done and if they could build the short block for me. When I started talk about the pistons he told me with the camshaft I'm putting in I would need to run a flat top with valve reliefs versus a true flat top piston. The camshaft I'm going to try in a 244/244 duration @ .050 and .518/.518 lift. I want at least a 10.25:1 CR. But what is everyone's opinion, is a true flat top piston like the W31s had (safely and common sense wise) possible?