Hi there, I'm hoping this information will help you on your trip.
I have been to Carowinds 6 times this summer, once during the Halloween event. Scarowinds crowds, simply put, are terrible. Fury wait times this past Friday night were 1 hour 20 minutes. Saturday night, reaching nearly 2 hours. However, Saturday morning we went to the park and waited about 35 minutes for Fury. Sunday morning (yesterday) the waits were even better. Intimidator was sending trains half empty all day. Now, as for next Saturday, I'm not sure what I would expect as it is Halloween but if this weekend is any indicator, it's worth the few extra dollars to go during the day if you don't mind missing the Halloween walk throughs. Your wait times will be cut in half on just about everything. I will also be there Sunday, November 1st, and I'm hoping for the same crowd levels as this Sunday but being the last operating day of the season, there's really no way to know for certain. I hope this bit of information helps you make your decision. Have fun!