Speed with No F-I

What can I do to my car to get the most power without spending all that money needed for Turbo/Superchargers? Any combination of small things? I've been told a Taurus 3.8 throttle body. Gettin a K&N filter this weekend. What all else?

Thanks guys!

First gen 1.9 HO header, needs a little tweeking to work. Chip, UDP.

new hood with ducts and forced induction along with a larger throttle body and better mass air flow senser will do nicely for round 500 bucks. Anything that keeps the engine running cooler and the air running into it cooler and less restricted will greatly improve it also.

new hood with ducts and forced induction...
I don't want Forced Induction (F-I, F/I, F.I., FI) .....yet.

I got my K&N Filter ($10, used twice...yeah!). With the HO Header, would a re-mapping of the computer work, instead of a chip? or would it cost more?

researching and researching and researching....jeff, what about the s/c off a toyota 4age engine? (assuming I could get one) The SC12, roots style blower, with an electric clutch, not much psi but enough, no need to run oil lines, would just have to find a mounting place. Thoughts?