I haven't seen anyone talking about piston to valve clearance yet, until you brought it up. We were discussing how you can take lots of material off and still get decent valve adjustment. I don't know if it's possible to make a 225 or 198 make piston to valve contact by milling. I guess it's possible. I know on the 225 in Vixen right now, the deck clearance was .175 in the hole. Ridiculous. I had the head milled to get the chambers from 56cc to 34cc. That was well over .155". This engine has a tic over 175 cranking pressure. On a slant 6.
