Dont hold me to it because I Dont want to get called a liar again but the Airwolf head had a 220 cc intake runner and they raped the floor to gain that area in an already piss poor shortside head. Pretty sure the first BPE heads had a 220 runner too which means area was gained in the same area. Again I may be wrong but the new BPE head is a 200 cc runner head. That Airwolf head is about as unstable as a girl I dated a few times.