If you do the 7805 conversion, you should know that your gas and temp gauges will probably give low readings. That was causing me lots of confusion with my gas gauge. It was like my gas tank had shrunk. When the gauge read empty, I would fill the tank - but it would only take about 11 gallons or so.:dontknow: And I was only getting about 160 miles from a 'full' tank.
If my logic is wrong, please let me know. Sorry about the long post...