X xbballbrandon23x New member Jul 22, 2012 #1 i installed my new tach in my 89 5.0. whats the easiest wire to hook the illumination up to? also, whats the easiest way to disable the old factory tach? Last edited: Jul 22, 2012
i installed my new tach in my 89 5.0. whats the easiest wire to hook the illumination up to? also, whats the easiest way to disable the old factory tach?