Q#1: How much adjustment can be done to the rear bumper? Yesterday I noticed the right side of the rear bumper(where it meets the rear fender flare)is about 1/4 inch off compare to the left side. Dealer said the holes for the bumper support brace has to be modified

Any other solution to this problem?
Q#2: With AC setting maxed(recirculation on), what should the ac vent temp be at? Ambient temp is about 85ish