This is some of the things done to the car, my buddy gave me a list when he sold it to me, so this is the stuff he did to it while he owned it.

Ported blower
Intercooled
port and polished tb
Intense 1.9 roller rockers
ls1 retainers
Comp Cams 105 valve springs
Intense push rods
svt lightning pump
slp headers
flowmaster exhaust
Intense shift kit
alt rewire kit
strut tower brace
42.5 injectors
prj fuel rail
msd 10.4mm wires
fuel pump rewire
3.0 pulley have a 2.5 but don't know what size belt to run with it.