A 200 amp alternator will do nothing for this issue. Assuming the alternator is good and charging (check the voltage at the back of the alternator) the feed wire from the alternator to the battery may be corroded causing a high resistance connection.Thanks guys! Strange but I am still getting 11.8 at the battery and SM reads the same. I was a show yesterday and the gentleman I was talking to suggegested a 200 amp alt. He seemed fairly new to these cars and I did not agree that a 200 amp alt was the answer.