Well I had the same setup, but with a tune and I ran a 16.0 with 32'' bfg ko's and an open diff. without a tune you should run a 16.7-17.1 depending on how well you hook. After you get a tune the first thing you should get is a locker and better tires, your 60ft times will be in the 2.4-2.7 range with an open diff. and your 1/8th mile times will be high 10's. with a tune and a locker you should run 15.5's. IMHO.