Ok I have about $300 to spend after my brake upgrades(maximum motorsport brake upgrade kit). I NEED some more power.

I would like to get some more power N/A but I don't think I will get much for $300, should I just save the $300 for a nitros kit? I don't think I will be doing heads/intake/cam until I get out of college(money issues) in 2 or 3 years and need a new motor(unless mine blows up). Anyway are there any n/a upgrades for $300 that will give me a decent amount of power or should i just save for the nitros... or look into getting a used kit for $300... any and all opinions appreciated....mods are in the sig
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92 AOD GT, K&N, ram air, pulleys, 2 ch. flowmasters, 4:10's, shift kit, 1 5/8 mac longtubes and offroad hpipe 14.249 @ 97.34 mph before the headers and hpipe