Great point.
I know the Bloomer heads( on the bench they were flowed on) don’t show any really different numbers than the other heads being mentioned here.
But they make WAY more power and come ready to bolt on.
I have a hard time figuring out why anybody would by anything else in the factory bolt on head arena.
Maybe because they are unobtainable? Not to mention not everyone may agree with your assessment of the bloomer head. I for one would rather try something else which is why I went with TF’s which I believe are the best out of the box street head.
