Originally Posted by Stevo86
I can promise you that you will not gain a full second in 0-60 time with underdrive pullies nor were your accessories "slipping" and freeing up enough horsepower to give you the extra second.
I'm not sure what the cause of your cars sudden sluggishness is but unless you did something very wrong the belt is not going to be your issue.
I just realized that i had a fat friend sitting in the passenger seat that night! my bad haha.
Im sure his 250 lb body could make a huge difference.