Just for S&G's, go to a completely different parts store and get another voltage regulator. I was on my THIRD new one in three days before I got one that worked properly... Also, take apart all your connections, clean them and reassemble with NOALOX cream from Home Depot, Ace, Lowes, etc.. Run a new charge wire from the alt to the solenoid- a heavy one. Make double sure all three of your grounds are good... That's all that comes to mind at the moment- Good Luck!