Jan 11, 2011 #1 slo-joe55 Member Joined Jan 12, 2007 Messages 183 Just wondering at what point should after market headers be considered on a 231 cu in build?
Jan 11, 2011 #2 B bmackinnon Active Member Joined Feb 24, 2005 Messages 2,092 Stock headers will go deep into the 9's.... :wink:
Jan 11, 2011 #4 B Blazer406 Mechanical Engineer Joined May 2, 2002 Messages 5,068 I've seen one around the 140mph mark..... and that was on pump gas and alky.....
Jan 14, 2011 #6 M Mr.Spool Well-Known Member Joined Nov 6, 2006 Messages 7,615 actually when your tired of repairing the cracks and leaks.