I Dont Want To Get Into A Pissing Match Here! This Is For The Guys That Want To Do Some Port Work In The Garage At Home..... If You Want To Have The Same Setup As Everyone Else Has Then You Should Go Buy Some Twisted Wedge Heads And A E Cam Or A Stage 1 Trick Flow Cam....or Spend Gobs Of Money Getting Them Ported By The Pros... Or You Can Save Yourself Some Money And Port Your E7 And Beat Them And Feel Good That You Didnt Have To Buy Your Hp....you Made It!