I'm considering purchasing either the Hedman Elite (http://www.summitracing.com/parts/HED-88308/) or Hooker Competition (http://www.summitracing.com/parts/HOK-6901-1HKR/) headers for my Mustang. I believe both will work on my 289 with the toploader and stock equalizer bar setup. Has anyone used either of these or have an opinion on which is better?