cheap or free mods:

plugs, wires, dist. cap/rotor

bump the timing a few degrees and run good gas

remove the screen from the maf, you can also take some of the cooling fins off the inside

gut the air boxs below the filters, or fab up a ram-air system from behind the fog lights

remove the air pump and gut the cat

buy a nice catback, and install a $30 cutout while you are at it

air-foil

160 degree thermostat (or 170 if you are worried about winter)

throttlebody bypass

remove the upper plenum and grind off the "bumps" behind the front openings, and port out the passages going into the runners

headers

find an LS1 aluminum drive shaft (less vibration and frees up a few hp)

underdrive pullies (good gains since the waterpump is belt driven)

lower control arms, relocation brackets and polyurathan torque arm mount for better lauches

there are more...been a while since i've had my 87 iroc

 

I hope you're not set on that hood. For the money you'd put out for that hood you could put it towards actually making it go faster, rather than look faster, which I believe was the point of this post A nice set of headers, which are cheaper than the hood, would add a significant HP increase to your car with the Flowmaster you're already planning on. Sounds good too Keep the rest that you saved for the hood for the nickel and dime stuff listed one post above.

IMO - that hood looks horrible. Around here nearly every trailer park has a Thirdgen with that hood on it. But do whatever you wish, it is your car.

 

if your gonna get a hood get a SS ram air.