Dan,
Still going to tell you that these wheels are not going to still be spinning while you go drink a cup of coffee. Unlike your kart wheels, you have disc brake drag; the new seals and bearings, etc... Could you have over tightened them?... Perhaps. Regardless; The wheel is NOT going to spin a ton like your kart wheels. Go spin the front wheels on your street car. You are way over-thinking this whole front wheel thing.
Steve