hay guys i have recently bought a 1990 camaro RS with 305 tbi. i was wondering if there was any cheap power upgrades that could boost my power with out hurting my wallet. i bought the car with edelbrock headers and a cat back exhaust.

 

theres larger injectors, bigger throttle bodies, spaces, and a few other things for the tbi that improve performance. heres a good read for ya:
http://www.thirdgen.org/ultimatetbi
http://www.thirdgen.org/ultimatetbi2

 

Cheapest and easiest is always to improve airflow. Since you already have headers and a catback, I would say to start by getting a low-restriction aircleaner. K&N also has an aircleaner lid that has an element built in to increase airflow, and Summit Racing has a generic version.

Beyond that, I'd say to increase spark; get better plugs and lower-restriction wires and a hotter coil. Injectors are always good, too.

 

If youwanna go crazy and do a lot of work, go to a scrapyard of some sort, and get the vortec top end (just the heads andintake manifold) from a 95-98 chevy/GMC pickup with EITHER a 305 or a 350. You may need to get an adapter to mount your throttle body on that intake manifold, because your intake manifold will not work. Those heads will give you 40-50 horse because the L03 heads on your tbi 305 are junk and nothing but big paperweights. (I have the same car) You can try that if you want, or just take the heads and switch to carburation (tbi sucks). But anyway, that will cost you almost nothing and get you quite the power your looking for.