^polyurethane bushing kit, progressive springs, KYBs, some good brake pads (at least).
QG16 may be a bit limited in terms of getting bang-for-your buck, you may want to consider an SR swap sometime in the future, get some good engine mounts, strut bar, sway bars, and u'd have yourself a nicely running street machine..
Remember, the more power you make, the faster u can go and the less control you may have. Upgrade your brakes, suspension and get good tires before you add anymore power.
Also, transferring what power you make now more effectively to the ground ca also make you "faster" eh
