Stage 2 Intercooler, Ls1 Throttle Body, 42.5# Fuel Injectors, 2.6" Pulley, XP Cam or Intense S1X, Crow #105 Valve Springs, Some kind of headers, some sort of CAI, 180* or 160* Thermostat, Autolite 103 Spark Plugs...AND A TUNE!! Tune is what makes or breaks these cars...with that setup IMO, you should be around 300+ whp.