I have read several of NC Engine Builder's responses to the Bloomer head controversies and I can't see where he has said anything that puts him in the 'hater' category. I just don't think he's in the 'believer' category yet. Let's get a set of Bloomers and a good set of PBR heads in a showdown. That would sure sway me one way or the other. Just not enough info yet. A 190cc TF head developed for a 340 engine against a 208cc Bloomer is hardly a fair fight.