i think you should put in the intake manifold. i think the cams and throttle body would be more like in the 300's but you can get a good manifold for like 250. You got a nice car i wish i had it...tkae care of it.
oh yeah i may also suggest the JDM OEM front end conversion kit
with a candy apple red paint job or white which ever appeases you. Get some SW388 spoon rims and your sittin prime on your exterior. All this will run you about 5,000 though but your car will look like a brand new Integra DC2. Thats my personal opinion but its your car.
Good Luck