It's been a while since I looked at this thread. Sorry for the long delay.
Will I keep it stock?
Rob answered for me.
At this point, all I've done to ole "Balls 39" is put Red Line products in the car...10W30 engine oil, a mix of D4 ATF and MTL in the trans and 75W80 in the axle. I ran the car on the chassis dyno at Westech last fall and it made 363hp@6000 at the wheels, which is pretty good for a bone stock Z06.
My first round of mods will be:
A Green Filter
A set of Denso Iridium Power spark plugs.
MSD ign. wires.
170 deg. thermostat from Corvette Central
Z-Industries ECM calibration
Aeroquip braided hose for the power steering pressure line
Red Line Power Steering Fluid.
Aeroquip braided brake hoses
Slight lowering.
Second round might be:
AFR heads
Crane cam and valve train
Headers
Z-Insustries ECM cal. to match.
Some kind of intake kit.