Originally Posted by Kai
That depends who you ask. I've seen multiple charts on the subject, and the most reputable showed a near identical overlay. The PR3 had only a slight low and high advantage, while the P72 had a nice midrange advantage. When you get into this kind of build, the lower compression B16A head seems more useful.
if you ask me I think its just more of a urban legend then anything else.
I was under the infleuence that the B16 heads were rather high compression?