Here. Just got a call from the kart shop... Clutch shoes are toast. Usually lose about 10% of power because it's not being put down. It also has a cheaper engine mount (already been told this), where flex will cause adtl loss, but only a few %. Back of the envelope, she'll be hitting track 40-50% more power.
And apparently the guys at the shop really like her, because she's a smartass little shit. Enough so that they were telling the owner about her when they were going through the kart with him. She will make my life difficult. I just know it.