a couple guys on the regal forum have gotten down around 3000 without driver notfast was one of them I can recall the other guys screen name
notfast ran 12.1 @117 on a ported front mani ,3" dp , 3.4 , race fuel , 75 dry shot , dr's ,and a lot of weight reduction car also ran 13.0 no spray
one of my cars that I had across the scales was 3440 no driver , no spare ,jack ,engine lift brackets , floor mats , manuals , 1/8 tank fuel
besides the suggestions above which are good ones a few ideas that come to mind would be delete cruise , wipers, stereo ,windshield motors, and put a race battery in it
if he is looking to keep wipers , heat/ac etc.. basically stay inspectable its not going to happen gotta dig deep to hit 3200 w/driver but yes its very do-able