Current modifications:
Stainless works 1 3/4" longtube headers
Corsa Indy exhaust system
NLP 226/230 dur cam, 114 LSA
comp 918 springs and comp pushrods
ASP underdrive pulley
Halltech T-1 cold air intake
18" front/rear Z06 chrome wheels
drilled/slotted front and rear rotors
T-1 swaybars

currently makes 355RWHP with a stock intake and heads.

So far the car is as I bought it except for 15% tint I had installed, and a redline black shift and e-brake boot set. (not in pics)

I plan on installing a fresh 427 LS1 when I return from my deployment:
4.125" sleeved LQ9 iron block, eagle crank and rods
Diamond LS7 piston and ring combo
ARP fasteners
fresh sensors
LS7 CNC ported heads and ported LS7 intake
melling oil pump with blue spring
QM600 camshaft
another dyno tune
stock LS7 rocker arms (for now)
MSD coil packs
LS7 lifters

additional modifications planned:
M12 Z06 Lv5 RPM trans
DTE stg 2 differential, 3.42 gearset
DTE rearend girdle
'01+ torque tube
upgrade to spec stg III+ LW clutch
new GM CV axleshafts
Z06 screens and rear brake duct kit
black and pewter sport seats with harness bar
nassau blue LS7 fuel rail covers

For the most part this should pretty much round out the car for daily driving. I dont want to take a hit on mileage, but after looking into it, to make my HP goals I would need a larger cam, and a tamer big cube engine gets roughly what a more aggressive smaller one does, hence the 427. I'm getting 33-34 MPG on the interstate right now, figure I'll make upper 20's with the 427, while keeping similar or better driveability. Engine of that size should have no problem making at least 550 RWHP, even that mild.