TW> Teh best thing you can adjust is the Furl to Air ratio. Depending in   
   TW> what you are after yuo can lean it a bot for better miledge or enrichen   
   TW> it For a litle more power. You alaso might be able to play with   
   TW> the spark advance.   
      
   I have always thought that messing with those settings could end up fouling   
   your spark plugs (either too lean or too rich).     
      
   Year ago I attempted to play with those settings on a 4-barrel carb with bad   
   results.  I found it easier to just swap the carb.. :)   
      
   - Mark   
      
   --- WWIVToss v.1.50    
    * Origin:  http://www.weather-station.org * Bel Air, MD -USA (1:261/1304.0)