Depends on how much you're going to track the car......and your budget. If you'll track the car regularly and want to run with the big dogs out there, then you're going to want to personally select all of your important pieces. I'm talking bigger wheels and tires, adjustable coilovers, adjustable ASB's, bushings, etc. So if you're going to do a custom setup eventually, go SS. If all you want is a track ready car to do a PDX ocasionally, the 1LE is the cheapest way to go.
ERL 500 ci Short Block, 2in ARH Headers, TSP LS7 Heads, LSXR/NW 102, Forgeline, MGW Shifter, StopTech BBK, Pfadt C/O's, Pfadt ASB's, etc, PowerFab Dynotune