I need some help choosing some heads for a 408ci motor. Im also on a strick budget so money is an issue. I heard a lot of good things about the AFR heads. What do you guys think about the Pro Topline heads? Hows the quality? Are they CNC ported or what? They are only $989 for a pair of 215cc compared to AFR's 205cc for $1,800. The 205 AFR's flow much better than the 215 Pro Topline on the exhaust side though. I was thinking I could always get them ported since they are so cheap. Any opinions? THANKS, PEACE 1