Header Wrap

["STEPHEN SALATA USAET(UTC -04:00)" <ssalata.ford@e-mail.com>]

By using the header wrap to retain more heat in the exhaust it will allow       
the exhaust velocity to remain higher than when it is allowed to cool.  Higher  
exhaust velocity means better cylinder scavenging.  This will cause the         
intake mixture to lean out, and therefore increase the engine temp. The carb    
should be rejetted slightly richer, and a new set of plugs installed to check   
to later for the desired "light brown" color.