S squizz New member Joined Feb 2, 2009 Messages 1,685 Nov 29, 2009 #1 Does A First Gen Head Flow Worse Than A Second Gen
CaptainChrysler New member Joined Feb 8, 2008 Messages 211 Nov 29, 2009 #2 The newer ones are supposed to have more swirl. Never had 2 side by side to compare though.