94 LT-1 A4 3.23'S, Torque convertor, edelbrock headers, cut-out, straight pipes, slp cai, jet stage 2, 160 tstat, fan switch, tranny cooler, bald drag radials, magnecore wires, off road pipe, air foil?? i ran 14.3 stock with just the T.C on a bad track and was fish tailing with stock tires and had like a 2.3-2.4 60ft time...

what u guys think? worse case senario and best case?

 

Its hard to say, what stall is your converter and how BALD are your drag radials? If I had to guess I would say best case scenario a 13.2 but you'd really have to improve your 60' times and worst case a 13.9 I had several mods done to my 2002 LS1 but when I added rear LCA's, a cutout and nitto's I cut half a second off of my time.