Yea, but the life of your alt will probably shorten...If youre looking for output at idle, I would suggest Mechman //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif theyre awesome at idle
http://www.DCPowerinc.com , had the same problem on my 4.6 , Dave at DCPower built me an alt that does almost 200 AT IDLE. Tried the other brands, none compared so far.