Well I just put on turbo T25 setup with S4 cams and well in 3rd during a hard pull sometimes the battery light will come on? I'm guessing the Alternator belt is slipping does this seem right?

mine started to do that to me as well...it went off and on for about a week, then one day it came on, stayed on, and then the car died >:^( it could be just the belt, but when mine did that i had to replace the alternator.