I am currently driving on LT 195 75 R14 tires.  My speedometer is off by A long shot.  I am cruising along thinking I am doing around 70 and really I am traveling 50 MPH.  ANy suggestions on a good size 14 inch to run or any suggestions on how to adjust speedometer?  I like the LT tires because they last longer with the extra weight on them.  
 
Not sure deciding to go with LT tires was a mistake.  
 
Thanks in advacne for your replies.  "Prohibition will work great injury to the cause of temperance. It is a species of intemperance within itself, for it goes beyond the bounds of reason in that it attempts to control a man's appetite by legislation, and makes a crime out of things that are not crimes. A Prohibition law strikes a blow at the very principles upon which our government was founded."